Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page McCord Museum:

"

The collection contains the William Notman & Son Photographic Studio fond constituting more than 600,000 photographic images (including 200,000 glass negatives) dating mostly from 1840 to 1935. The collection also includes approximately 700,000 images taken by other photographers.[1]