Part 4 (M2001-180): Additions, 1914-1979
Physical Description: 0.5 c.f. (1 archives box and 1 oversize folder containing 180 photographs and 16 negatives) 
Scope and Content Note: Additions, 1914-1979, consisting of photographs and negatives taken by D.D. O'Brien, Warren O'Brien, and Dean O'Brien; including images of O'Brien family members, a 1948 trip to New York City, Waukesha Memorial Day ceremonies, O'Brien Studio employees, and samples of Christmas cards produced by the studio.