Chronology between 1936 and 1961 of sales and subdivisions of the property owned and occupied by Francis O. and Erma H. Underwood in 1950.
Deeds and maps referred to are all available from the online database service of the Tompkins County Clerk.
BF105257-001 DEED [Book 242, Page 273] Stanley W. & Esther Y. Warren to Francis O. and Erma H. Underwood, 11/5/1936
Prior to 1952, there were no house numbers for houses on Hanshaw Rd within the Town of Ithaca.
Francis Underwood was listed on Hanshaw Rd in the 1952 Ithaca City Directory as "1000 Francis O Underwood 3-1455 @". In the 1953 Ithaca City Directory his listing was "1020 Francis O Underwood 3-1455 @." Many houses on Hanshaw Road east of Community Corners (aka Corners Community) changed house number after the expansion of Cayuga Heights Village in 1953.
From 1953 to 1961, the house number was 1020.
In 1961, the property was divided into 3 lots as shown in BF023553-001 MAP, titled "Map of F. O. Underwood Lots at No. 1020-1022-1024 Hanshaw Rd. Carl Crandall, C.E. Jun 16, 1961." The number of the house in which the Underwoods lived in 1950 was to be changed from 1020 to 1022 Hanshaw Rd.