Looking for Tomson Family IN Riga Latvia

According to the national archives in Riga, Latvia, Kristine Tomsone was born in Feb 24 1879 in in Petrozavodsk, now capital of Republic of Karelia, Russia, 426 km n.e. of St. Petersburg. Her father was Ivan Bockovs.

Kristine's children were Boris (b. 1907), Irina, and Helena. Her husband may have been Eduard Tomson; he died before 1925, at which time she was living in Riga, Latvia.

I would appreciate any additional information.