1982 National Register of Historic Places Inventory for Colonial Germantown Historic District:
"Dirck Jansen House c. 1750; later alterations, two and one-half stories, stucco over stone with wood trim, Federal style. --- Contributing."

Additional Sources:

• GHS: Box 11, envelope 2, #66: "Peterson-McFarlane House, 6112 Germantown Avenue" (print from glass negative for "Spaces and Places" exhibit, 1980).

• GHS: Photo Box 21, envelope 9 Prints for Crier issues, Misc.: "Jensen, Dirck, house, 6112 Germantown Ave., in 1989" (photograph by Jeff Wojchiechowski printed in Germantown Crier 41(4):89, Fall 1989).

• GHS: Photo Scrapbook 2(2), p. 109: "This House stood just opposite Herman Street, and was the home of HENRY PETERSON, author of 'PEMBERTON', for whose plot 'Hugh Wynne' was later said to have been stolen." (same print as found in Box 11, envelope 2, #66 at GHS; this image shows the same house shown in the other sources for 6112 Germantown Avenue, but other sources indicate that Peterson lived at 6114 Germantown Avenue).

• GHS: Photo Scrapbook 5, p. 43: "Germantown Avenue, opposite Herman Street. Adjacent to the house shown above [6114]. Once the home of Henry Peterson." (same print as found in Box 11, envelope 2, #66 at GHS).

• PHC: 6112 Germantown Avenue, photograph ca. 1960 and floor plan.