Dorothy Kusel checked the Manilla Centennial book which had this Wenzel information in the link below.
There were no Schwiesow family names listed in the Centennial book but 2 Schwieso (without the w) family names --- Albert & Wilbur Schwieso.

Also Marie (Schwiesow) Schroeder who lives in Aspinwall is a sister to Walter Schwiesow and maybe she would have some pictures you are looking for.
Marie and her Son Wallace live in the same home in Aspinwall and are good friends of my mother.