Happy to hear from you.
My father was Lawrence Joseph Kroha, born in Milwaukee in 1902. His father was John Joseph Kroha, also born in Milwaukee, They relocated to Detroit in the 1920's.
You have also been in contact with Paul Dogbronski who has done extensive Kroha research. He has sent me his findings. My brother, John Kroha, is currently traveling in Czechoslovakia and thinks he will find the family home.
Where do you live? I am in Danville, CA as is my brother, Bob.