Family Geo and Laurentia Snodrass from St Louis, Missouri.

Hi,
I am looking for relatives to family Geo and Laurentia Snodrass from St Louis, Missouri.
I have found them in US Census 1930 and the family members were

Head Geo G Snodgrass, age 40
Wife Laurentia Snodgrass, age 41
Daughter Ruth L, age 16
Son George N, age 14
Son Robert L. age 8
Son William S, age 6
Mother-in-law Emma C Nelsson, age 69

Emma was married with John G Nelsson and he emigrated from Sweden 1883.

Thankful for all help / Ingvar Nore