If the husband of such woman becomes a citizen of this state, and they cohabit together, the fact of his becoming such citizen, and such cohabitation, shall have the same effect upon any contract or business of the wife as if the marriage between them had then first been solemnized.
RSA 460:13
RS 149:5. CS 158:5. GS 164:6. GL 183:5. PS 176:9. PL 288 :10. RL 340:10.