1982 National Register of Historic Places Inventory for Colonial Germantown Historic District:
"Commercial/residential building, c. 1865; first floor alteration c. 1890; permastoned c. 1960, two and one-half stories, brick with wood and pressed metal trim, Second Empire style. --- Contributing."

Additional Sources:

• GHS: Keyser, Naaman. Manuscript Notes for v. 2 (north of Chelten), History of Old Germantown, p.51 (unpublished typewritten notes; see also the entry for 6118 Germantown Avenue):

  "6122 In 1860 this was owned and occupied by William Benner. It is now owned by Mrs. Susanna Benner, and is occupied by Dr. Walter H. Kremer."

• PHC: Mutual Fire Insurance of Germantown Policy 21132 for Harry and Lena Ackerman in 1920 and for Hannah Wyde in 1935 (survey with photo and site plan).