Did Yuri Gagarin get married

Yes, Yuri Gagarin married Valentina Goryacheva (a nursing student) in 1957 and had 2 children.

Further research states that their wedding date was set for 27th October 1957 (Starman: Jamie Doran and Piers Bizony) and another states that they got married on 7th November 1957 - the same day he graduated from the military aviation school in Orenburg (Russian Archives online).