Apparently unmarried.

There is no proof that Olive was a daughter of Elijah and Hannah Twist, but

* She is mentioned as a daughter in several accounts
* She appears in the 1850 census living with Elijah and Hannah Langworthy just before they died
* She appears in the 1860 census living in the household of Rachel Knapp, known to be a daughter of Elijah and Hanna.

Census Tracking:
* 1850 - White Creek, Washington Co., New York
* 1855 State Census of NY, Washington Co., White Creek (living alone)
* 1860 - Ellington, Chautauqua Co., New York
Note: Living with her sister Rachel