The University of Wisconsin-Milwaukee Libraries has a free, online collection called Milwaukee Polonia-a digital collection of Polish-American images from the 1900s through the 1940s.
“In its day, Milwaukee’s Polish-American community was among the largest in the United States. The first Polish inhabitant of Milwaukee arrived as early as 1842, and by the turn of the century Polish-Americans formed the second largest ethnic group in the city. Most settled in four-square mile area on the South Side known as “Polonia.” This digital collection draws from the work of studio photographer Roman Kwasniewski to illustrate the history of Milwaukee Polonia from the early 1900s through the 1940s. The archive consists of over 32,000 images.”
Milwaukee Polonia is searchable by: