Lottie Ward married Cyril S. Wengert in 1921; they had five children:

James “Jimmie” Wengert (July 7, 1923-March 27, 1930) ("who died ... at age seven from complications following surgery" (http://www.onlinenevada.org/articles/cyril-s-wengert)

She was born December 14, 1927 and died July 2, 2006. She was a skilled musician and studied on a full scholarship at Julliard school of music. 

https://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=92923834 

This was really the only information I could find for Robert E Wengert

http://1940-census.mooseroots.com/l/85853995/Robert-E-Wengert#Timeline&s=4zvYm3