PCAD - Images for the person John Ivar Mattson

Exterior view from the west of the Delaloye Apartment Building, Seattle, WA, c. 2021. From the King County Assessor, iMap Parcel Viewer, Parcel Data for Parcel #780415-0000, accessed 08/20/2021

Exterior view of the Delaloye Apartment Building at 610 Aloha Street from the south, Seattle, WA, c. 2021. From the King County Assessor, iMap Parcel Viewer, Parcel Data for Parcel #780415-0000, accessed 08/20/2021

Portrait of John I. Mattson, Seattle, 1925; from the University of Washington Tyee Yearbook, 1925, Tau Sigma Delta page, p. 124

Satellite view of the Delaloye Apartment Building, Seattle, WA, c. 2021. From Google Maps/Street View