WI WI - Helen Stark, South Milwaukee, 23-26 years old, 12 January 1946

[WIMurderChronicles]

I found out her mother died in 1936, and her younger siblings were put in an orphanage.
Maybe that's why her family believed she'd never abandon her children?

Also, if there ever was a missing person report it might have been lost, and maybe a relative filed a new one in 2013, when she was entered into Namus.
By then there was only one sibling left who was only 13 when Helen disappeared, hence the few details and "sketchy facts."

Mother/ findagrave
1940 census (St Joseph Orphan Asylum)

Dorothy died in 2015. Sophia in 2013. In Sophia’s obit Helen and the three brothers are listed as deceased .