Conversation so far:
Was Melissa Gilbert ever married?
actor Bo Brinkman, a cousin of actors Randy Quaid and Dennis Quaid.
The couple married.
When did they marry?
February 22, 1988.
Did they have any children?
she gave birth to son Dakota Paul Brinkman.
Was he their only child?
They divorced in 1992.
Did she ever remarry?
they finally married on January 1, 1995.
Who did she marry the second time?
Bruce Boxleitner's.
Did they have any children?
She gave birth to a son, Michael Garrett Boxleitner.
Did she have any daughters?
she gave birth to son.

Question: How long was she married to her second husband?
Self-contained rewrite: How long was Melissa married to Bruce Boxleitner?