1. WHITESIDE, HUGH 07/06/1888 747 RG 150, Accession 1992-93/166, Box 10317 - 46
the above is from the Canada collections site...looks to be the same fellow as the CWGC...
Chicago....if this is your fellow, definitely send for the attestation file....they have lots of interesting information in them I sent for my grt grandfather's a couple years ago, cost about $25 canadian. (the website link will explain how to order)
all the best
Wendy