Personally I thought it was great to meet Kirk's future grandparents.
My question about it for Christopher is what from canon or trek-lit inspired you to make his grandfather an historian?
Jim Kirk is well-known to be a history buff. Also, I wanted the two characters to reflect the two sides of his personality -- the impulsive man of action and the contemplative intellectual. I made his female ancestor the tough/aggressive one to subvert stereotypes.
Plus I've sometimes come across threads where people wondered just what purpose a starship historian would serve. Featuring a historian character gives me a chance to answer that question, and get some use out of my own history degree.