1982 National Register of Historic Places Inventory for Colonial Germantown Historic District:
"(SWC Haines) John Metzler house, before 1784; severe first floor alterations, twentieth century, two and one-half stories, stucco with wood trim, Colonial/Federal styles. --- Contributing."

Additional Sources:

• GHS: Jellett, Edwin C. "Germantown Historical Miscellany," p. 238: panoramic view of Germantown Avenue south of Haines (1906 post card).

• GHS: Keyser, Naaman. Manuscript Notes for v. 2 (north of Chelten), History of Old Germantown, p. 35 (unpublished typewritten text).

• HSP: Campbell Collection (Compiled by Jane Campbell, circa 1900-1910), vol. 33, p. 192: panorama of Germantown Avenue below Haines beginning with 5926 Germantown Avenue (photograph).