An archive of pre-1930 vintage greeting postcard art and correspondence
According to Wikipedia:"Established in 1863, Harper is among the oldest U.S. medical teaching institutions.Nursing became professionalized in the late 19th century, opening a new middle-class career for talented young women of all social backgrounds. The Harper Hospital School of Nursing, begun in 1884, was a national leader. Its graduates worked at the hospital and also in institutions, public health services, as private duty nurses, and volunteered for duty at military hospitals during the Spanish-American War and the two world wars."Perhaps May Williams was a nurse there? I hope she wasn't a patient!
Perhaps this is:"Michigan, Marriages, 1868-1925," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/N3FP-T8B : accessed 09 Jul 2013), Harry Williams and May Harlow, 30 Jun 1904.