Question:

Was Paul married?  I believe to be a member of the Sanhedrin he was, but I understand Bible does not indicate this. 

Answer:

I know of no reference that indicates a member of the Sanhedrin had to be married. Just to be sure, I checked numerous references, including Jewish Encyclopedias, and found no such requirement. Membership on the Sanhedrin was mostly a political appointment where scholarship was considered as a secondary factor. I see numerous claims that it was a requirement, but none indicate sources which tells me this is probably an urban legend.

Paul stated that he was not married. Because of the approaching persecution (I Corinthians 7:26), Paul urged Christians to refrain from marriage as he had done, if they could. "But I say to the unmarried and to the widows: It is good for them if they remain even as I am" (I Corinthians 7:8). In defending his apostleship, Paul stated that the fact the didn't have a wife with him didn't make him less of an apostle. "Do we have no right to take along a believing wife, as do also the other apostles, the brothers of the Lord, and Cephas?" (I Corinthians 9:5).

Not that it mattered because Paul wasn't a member of the Sanhedrin. There are indications that he was being groomed for the position. "And I advanced in Judaism beyond many of my contemporaries in my own nation, being more exceedingly zealous for the traditions of my fathers" (Galatians 1:14). But it is fairly clear that Paul wasn't actually a member.