Florence Street was constructed in 1885. The south end portion (Park St.) of two acres and 28,045 sq. ft. was owned by Hannah W. Foster, wife of Joseph W. Foster. Hannah sold the parcel to William Wood, a carpenter for $1900 on March 13, 1883. Wood built his home at 66 Park St. and house lots extended on both sides up to #21 and #24. The north end portion (Elm St.) on the east side was the former Moses Abbot Jr. homestead at #49 Elm St. Owned by his son George T. Abbott, also a Housewright, who was partners with William S. Jenkins in the firm Abbott & Jenkins. The Abbot parcel extended to #20.
The west side of Florence St. to #17 was formerly owned by the Henry Burtt estate formerly at #35-#37 Elm St.
Oct. 2, 1885 Andover Advertiser - pg. 2 col. 9, “The new way between Park and Elm has been completed by Nathan F. Abbott, the contractor, and accepted by the Selectman. Several names have been suggested……”

House lots were then created and sold to a variety of residents. Roderick McIsaac, wife Hannah purchased the lot for $1100 on July 23, 1886 from Alice Abbott, wife of George Abbott. The lot size was 24,150 sq. ft. and contained two homes, #16 and #20-#22, until 1953. This two family residence at #20-#22, we believe, was built later than the home at #16. The McIsaac family built in 1887. Roderick McIsaac took an $800 through William S. Jenkins the builder of the home on Dec. 29, 1888. The deed states with buildings. The property was deeded to daughter Margaret (McIsaac) Reardon, wife of Walter Reardon, on Aug. 31, 1895.

Cornelius Sweeney, wife Hannah purchased the property on July 17, 1901. In the 1920 Andover Valuation Schedule Cornelius is assessed for House 14 Florence St. $2200, Barn & shed $200. House Florence St. $4000, and 13038 sq. ft. of land $1700. The land size is the home now at 20-22. The deeds however state the size at 24,150.

Cornelius deeded the property to his daughters on March 20, 1925. Katherine M.Sweeney, Mary J. Sweeney, Helen C. Sweeney, Ann M. Sweeney b. 1886 and Elizabeth R. Sweeney b. 1888. Helen C. Sweeney died on Feb 13, 1938. Katherine M. on July 28, 1947 and Mary J. Sweeney on June 23, 1950

Ann M. and Elizabeth R. Sweeney were now sole heirs and on June 5, 1953 they sub-divide property creating two separate lots. They then sold the home at #16. This property remained in the Sweeney family for 64 years. It was then purchased by Michael M. & Janet M. Cahill on Nov. 24, 1965. Michael M. Cahill died of heart failure on July 26, 1982 at age 43. His widow Janet M. Cahill would later sell the property to Charles A. & Susan S. Papalia on Aug. 15, 1983 who continue as owners of record in 2017.