Professor Heilprin was born on this day, March 31, 1853 in Hungary. He was a naturalist, geologist and author. His book “Alaska and the Klondike: a journey to the New Eldorado, with hints to the traveller” and his book “The Dial” were both written in 1899 and are found online. The first book (online) has some nice photos of Skagway in 1898 that I have not seen before. Seen above is the professor.
He died in 1907 in New York City.
1880 census in NY; online bio; Hunt p 46