per Mary Frost Jessup’s History of the Jessup Family in Montrose, Pennsylvania
-Vasser graduate, masters from Columbia Univ

1920FCI DSD Jessup and Family; United States Federal Census; New York > New York > Manhattan Assembly District 11 > District 826 > 23; image 23 of 46 @ancestry.com; Source Citation: Year: 1920;Census Place: Manhattan Assembly District 11, New York, New York; Roll T625_1205; Page: 12A; Enumeration District: 826; Image: 423.

1930FCI DSD Jessup and family; United States Federal Census > New York > New York > Manhattan (Districts 501-750) > District 517; image 4 of 28 @ancestry.com; Source Citation: Year: 1930; Census Place: Manhattan, New York, New York; Roll: 1560; Page: 2B; Enumeration District: 517; Image: 675.0.
Household Members: Name Age
David Jessup 60
Maud Jessup 59
Mary Jessup 27
Betty Jessup 22
David Jessup 18