Madison, New Hampshire, follows the state’s uniform marriage laws, which prohibit first-cousin marriages under RSA 457:1-3. This ban applies across all towns, including Madison in Carroll County, with no local exceptions.
State Law Overview
New Hampshire Revised Statutes explicitly forbid unions between first cousins—children of siblings—listing all combinations like father’s brother’s child or mother’s sister’s child. The prohibition, enacted in 1869, remains unchanged as of 2026, making NH the only New England state with an outright ban. Distant relations like second cousins or first cousins once removed face no restrictions.
Out-of-state or foreign first-cousin marriages gain no recognition in NH, rendering them void for inheritance, divorce, or custody matters.
Madison Town Specifics
Madison’s town clerk at Town Hall processes applications per state code, requiring ID, affidavits of eligibility, and proofs of prior marital status dissolution. Fees hover at $15-25; licenses issue immediately for 90-day use statewide. No blood tests or waiting periods apply, but prohibited relations void applications on discovery.
The rural town’s vital records align strictly with RSA—no municipal overrides exist for family ties.​
Prohibited Degrees Defined
- First cousins: Banned (shared grandparents).
- Closer: Parents, siblings, aunts/uncles—criminal offenses.
- Half-cousins: Treated as full if blood-related.
- Adopted: Prohibited only if biological first cousins; step-relations allowed.
Minimum ages: 18 absolute; 16-17 parental consent; rare judicial waivers below.​
Health and Genetic Basis
Offspring of first cousins carry 4-7% risk of recessive disorders—double the general 2-4%—spurring the law amid national trends. NH joins 25 states in outright bans, prioritizing public health over consent. Absolute risks stay low given rarity (under 0.2% U.S. rate), but policy endures.
New England Comparisons
Application Process in Madison
Schedule with the clerk; submit SSN, residency docs. Affidavits swear no bars under RSA 457. Officiants include clergy, justices; no self-solemnization. Common errors: Cousin miscalculation—diagrams help distinguish degrees.
Consequences of Violation
Issuance despite prohibition voids the marriage retroactively; bigamy risks arise if remarrying. Sexual relations or cohabitation remain legal for adults 16+. Immigration or benefits ignore invalid unions.
Historical and Cultural Notes
Post-Civil War eugenics influenced bans; NH upheld amid “Live Free or Die” ethos selectively. Local Reddit chatter jokes “Alabama of the North,” but practice scarce. Madison’s lake communities host diverse weddings, adhering to rules.
Advocacy for reform stalls; 2026 bills focus elsewhere like child marriage, not cousins.​
Modern Advice
Use ancestry tools to map relations pre-application. Distant kin: No issue. Genetic consults wise regardless. Contact Madison clerk or NH legal aid for ambiguities.
Uniform enforcement ensures clarity; love freely within bounds.
SOURCES:
- https://wokq.com/is-it-legal-to-marry-your-first-cousin-new-hampshire/
- https://dataminingdna.com/can-first-cousins-marry-in-new-hampshire/
