I should have been more explicit. I do have a Mary Corradi in my tree. Must have divorced. Mary died in the Bronx. She married one of my Stark's.
John Stark was her husband and he remarried to an Emily Schneider.
Perhaps now you can see why your query seems like such a possibility.
1880 United States Federal Census about William Schneider Name: William Schneider Age: 52 Birth Year: abt 1828 Birthplace: Baden Home in 1880: New York City, New York, New York Race: White Gender: Male Relation to Head of House: Self (Head) Marital Status: Married Spouse's Name: Frederika Schneider Father's Birthplace: Baden Mother's Birthplace: Baden
Occupation: Tailor Household Members: Name Age William Schneider 52 Frederika Schneider 49 Amelia Schneider 22 Charlie Schneider 18 William Schneider 13 Emma Schneider 8
I believe this is William in 1930, but is not proven.
1930 United States Federal Census about William Schneider Name: William Schneider, Art Studio Gender: Male Birth Year: abt 1867 Birthplace: New York Race: White Home in 1930: Bronx, Bronx, New York View Map Marital Status: Married Relation to Head of House: Head Spouse's Name: Anna Schneider Father's Birthplace: Germany Mother's Birthplace: Germany Occupation:
Household Members: Name Age William Schneider 63, Litho Artist, Art Studio Anna Schneider 60 Mary Korradi 58, Sister in Law Louse Korradi 55, Sister in Law