Jennifer, My maiden name is Lassin. I have done some research on the surname and this is what I have in my notes.
Frederick Lassin was born May 1897.He married approx. 1912 to Margaret Jablonski born abt. 1897 also.Margaret had a brother named Edward.Margaret's parents were born in either Poland or Germany. Where depends on what record being looked at.
Children of the couple are: Leonard b. abt. 1917 Dorothyabt. 1918 Victoriaabt. 1919 Virginiaabt. 1921 Gertrudeabt. 1923 Eleanorabt. 1925 Donaldabt. 1927
If you request Frederick's social security record it will tell you who his parents were.I am looking in my notes to see if I can come up with that information for you.