Black and white photograph of ice formation on Lake Michigan shore near Leland, ca. 1920. These are formed when waves force water under shore ice and the water finds a weakness in the ice and creates a "volcano" to relieve the pressure.
Black and white photograph of Carrie Petertyl, Marge Petertyl (in checked dress), unidentified woman in hat, and Albert Petertyl, ca. 1911. The children from left to right are Leslie Petertyl, Emanuel Petertyl and Ernest Petertyl. It appears to be…