There is a WWII registration for Theodore Alejski, born November 1, 1886. It says his birthplace was Posen, Polandhttps://familysearch.org/pal:/MM9.1.1/J49R-F17
There is also a WWI registration for a Theodore Alejski, birthplace Poznan, but gives birthdate as November 1, 1876.
There is also a marriage for Theodore Alejski, born 1886, marriage in 1914 in Detroit to a Blanche Krolikonski.https://familysearch.org/pal:/MM9.1.1/N3GV-7ST
Blanche died on January 12, 1916 from pneumonia. Theodore and Blanche had a premature infant named Theodore who was born December 13 and Died December 14, 1914
You can find these death records at http://seekingmichigan.org/
In 1930, his wife is given as Monicahttps://familysearch.org/pal:/MM9.1.1/X73S-KYP
with children Florence, 10 and Edward, 8
This may be the same as Minnie in the 1920 census, but not sure.