If you haven't already done so, you might check out this:http://books.google.ca/books?id=yJRaAAAAYAAJ&pg=RA1-PA15...
The record starts on 22 (157) and continues on 23 (153) and 24 (153). This link will take you to the second page so use the forward and backward arrows just above to read the other 2 pages.
Also, you might want to contact the Special Collections and Archives at Brock University's James A. Gibson Library to see if they can help. An extensive collection of Welland Canal documents is housed there.
905-688-5550 extension 4335