Strategy: Bigamy and Desertion Cases
By Dale E. Lee and AI
2026.07.08
Bigamy and Desertion Cases
For genealogists tracing elusive ancestors, few mysteries are as frustrating; or as revealing; as unexpected absences, conflicting marriage records, or unknown second families. When traditional records don’t explain a family breakup or the disappearance of a spouse, bigamy and desertion cases can hold surprising answers. These legal proceedings often left behind detailed court records, newspaper articles, and divorce filings that reveal relationships, migrations, and personal conflicts, providing rare insight into the lives and choices of ancestors who deviated from social norms.
Why Bigamy and Desertion Records Matter
While desertion and bigamy were both serious offenses; socially and legally; they were more common than many people realize, particularly in the 19th and early 20th centuries when record-keeping was less centralized and enforcement varied by state or territory. Individuals could move, change names, or remarry with little chance of being caught, especially in frontier regions or cities with large immigrant populations.
Case documentation can include:
- Names of spouses, children, and extended family
- Marriage dates and places
- Employment details and financial status
- Addresses and places of origin
- Affidavits from friends, neighbors, or employers
- Evidence such as letters, photographs, or birth records
This makes it invaluable for establishing or correcting family lines; especially in cases of conflicting marriage records, duplicate family structures, or unexplained disappearances from census records.
Common Genealogical Clues That May Suggest Bigamy or Desertion
- A spouse disappears from records with no recorded death
- An ancestor is listed as “widowed” but no death record exists for the spouse
- Two simultaneous marriages in different states
- Multiple marriage records with no corresponding divorce
- Children born to different spouses during overlapping years
- Newspaper articles referencing scandal, abandonment, or arrest
Where to Find Bigamy and Desertion Case Records
1. Divorce and Court Records
Bigamy and desertion were often addressed during divorce proceedings or criminal trials. These records may be located in:
- County Circuit Courts or Superior Courts (civil and criminal court records)
- Divorce petitions (often citing desertion)
- Decrees and final judgments
- Affidavits and summonses
- Criminal indictments (for bigamy)
- Depositions, witness statements, and judgments
- Chancery or Equity Courts (especially in Southern states)
- Often handled family law cases in detail
- State Archives
- Many hold older or defunct county court files
- May include separate indexes for criminal bigamy cases
- Probate Court: In some jurisdictions, family matters; especially guardianships or marital disputes; could intersect with bigamy and desertion cases.
Bigamy and desertion were often addressed during divorce proceedings or criminal trials. These records may be located in:
Tip: Ask for both civil and criminal docket books and plaintiff/defendant indexes by surname.
Tip: Always check both the plaintiff and defendant indexes; your ancestor could have been accused, the accuser, or a witness.
2. State Archives and State Libraries
Many states have transferred older court records to their archives or libraries, especially if the cases are more than 50–100 years old.
- State Judicial Records Collections: For example:
- Massachusetts State Archives holds 19th-century court records that include adultery, bigamy, and desertion.
- New York State Archives houses divorce and criminal cases from across the state.
- Divorce Case Files: Desertion was a common legal ground for divorce in the 19th and early 20th centuries, often with full affidavits and timelines.
- Pardon or Clemency Applications: In cases where bigamy resulted in prison time, these can be found with the state governor’s office or archives.
Resources by State:
- Georgia State Archives: Has superior court records that include criminal indictments for bigamy and divorce records citing desertion.
- Illinois State Archives: Offers court case indexes and prison intake registers.
3. National Archives (U.S. and U.K.)
U.S. National Archives (NARA):
- Federal Court Records: If the bigamy case crossed state lines or involved military personnel (e.g., married in two jurisdictions), it may have landed in federal court.
- Military Court-Martial Records: Desertion, if by military personnel, often shows up here. Bigamy cases involving soldiers also appear in these files.
- Records of the Bureau of Prisons: Convicted bigamists may appear in federal prison records.
- RG 153 – Judge Advocate General Records: Includes military bigamy or desertion cases, especially from the 19th and early 20th centuries.
UK National Archives (for British ancestors):
- Assize and Quarter Sessions Records: Bigamy was tried in criminal courts and may appear in assize records.
- Old Bailey Online (London criminal cases 1674–1913): Searchable by name, includes detailed testimony from bigamy trials.
- Prison Registers and Transportation Records: Bigamy was punishable by imprisonment or transportation.
4. Newspapers and Legal Notices
Scandalous or sensational bigamy cases were commonly reported in local papers, especially in the late 19th and early 20th centuries.
Look for:
- Headlines such as “Arrested for Bigamy,” “Husband Vanishes,” or “Desertion Case Settled in Court”
- Legal notices or public service ads for missing spouses
- Divorce filings that list desertion as grounds
- Court reports summarizing hearings
- Legal Advertisements: Desertion cases often required the spouse to publicly serve notice in newspapers if the other party couldn’t be found.
Searchable platforms:
- Chronicling America
- Newspapers.com
- GenealogyBank
- Local public library newspaper archives
- British Newspaper Archive
5. Police Blotters and Criminal Court Dockets
If bigamy was prosecuted criminally, the defendant may appear in:
- County jail registers
- Police blotters
- District or municipal court dockets
- State penitentiary records
Some of these have been digitized or abstracted by local genealogical societies.
6. Military and Pension Records
Desertion cases often appear in:
- Civil War and World War I pension files
- Compiled Military Service Records (CMSR), especially if a soldier deserted a family before or after enlistment
- Pension Files, Widows or spouses applying for pensions sometimes had to prove desertion or disprove a bigamous marriage.
- Example: A widow may have had to prove her husband wasn’t still married to someone else.
- U.S. Civil War Widows’ Pension Files (NARA), Often include claims against deserters or bigamists.
- WWI/WWII Draft Registration Cards, May list multiple addresses or next of kin with conflicting spouse names.
The Southern Claims Commission and Union pension files sometimes contain disputes over pension rights between multiple claimants (wives or children), revealing possible bigamy or desertion.
7. Church and Ecclesiastical Court Records
In some religious traditions, especially in the 18th and 19th centuries, bigamy and marital desertion were also handled within the church.
- Roman Catholic Church Tribunals: Marriage annulments or issues related to bigamy were often documented in diocesan court records.
- Church of England Consistory Court Records (UK): Handled marriage issues including desertion and bigamy prior to full secular control.
- Quaker Monthly Meeting Minutes: May record disownment or disputes involving desertion or unauthorized remarriage.
8. Prison and Penal Institution Records
If your ancestor was convicted of bigamy or desertion (especially abandonment of dependents), prison records can provide physical descriptions, aliases, family contacts, and sentencing details.
- State Prison Registers: Many include names, dates, offense (e.g., “Bigamy” or “Desertion of Family”), and parole board records.
- City or County Jail Logs: Short-term detentions before trial may show up in these.
- Find A Record:
- Ancestry.com: Often holds digitized prison admission and discharge books.
- FamilySearch: Has county-level criminal case files and penitentiary registers.
9. Digital and Online Databases
- Ancestry.com:
- “U.S., Criminal Records, 1791–1945”
- “U.S., Divorce Records, 1825–1972”
- “UK, Criminal Registers, 1791–1892”
- FamilySearch.org:
- Local court records collections
- County marriage and divorce indexes
- Findmypast:
- British criminal and court records
- Divorce and matrimonial court proceedings
- Fold3.com:
- Military pensions and court-martial records
Case Study Example
A researcher traced an ancestor who disappeared from his family in Iowa after 1880. A second marriage appeared in Kansas in 1884; no divorce record found. Further digging uncovered a criminal case for bigamy in Kansas records, including newspaper coverage. The court file revealed:
- His original wife’s affidavit
- Testimony from children
- Letters he wrote to both families
- A reduced sentence due to “good character”
This one file provided the missing connection between two seemingly unrelated families and helped correctly identify descendants.
Where to Start Searching
- County Clerk or Register of Deeds Office (divorce and civil records)
- State Archives (criminal case files, appeal records)
- Local Historical and Genealogical Societies
- Online Court Indexes
- Ancestry: U.S. Court and Criminal Records collections
- FamilySearch: “County Court Records” and “Divorce Records” by location
Use search terms such as:
- “Bigamy”
- “Desertion”
- “Divorce”
- “Abandonment”
- “Non-support”
Ethical Considerations
Uncovering bigamy or desertion can reveal difficult or painful family history. When documenting or sharing such findings:
- Approach with sensitivity, especially when contacting living relatives
- Stick to facts and cite sources
- Acknowledge the social context of the time; many people were forced into difficult choices due to poverty, war, or domestic abuse
Conclusion
Bigamy and desertion cases may not be common in most genealogical guides, but they hold enormous value for researchers trying to resolve conflicting family lines, locate lost ancestors, or understand dramatic shifts in a family’s history. They’re powerful tools for solving mysteries like unexplained disappearances, second families, or unknown spouses. By knowing where to look; courts, archives, newspapers, and military files; you can uncover compelling stories that transform your genealogical research into a multi-dimensional portrait of the past.
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