I am looking for a photo of a mare named Grand Seattle, 2005, bay mare by Chief Seattle out of Gran Ole Flag (dam sire El Gran Senor). I’ve Googled her, checked Allbreedpedigree and Equiline.com. She was bred to Elite Squadron and produced a colt named Three Sock General.
Better places to check would include Equibase and Pedigreequery. The reason I say that is because you can do a horse search on Equibase and access her entire race record, including purchasing video replays to rewatch. Also, it looks like she had one win at Assiniboia Downs: if you contact the track photographer with the date and race number, they will probably still have the win photo available for purchase. Google says this is the contact: https://www.retiredracehorseproject.org/view-all-sources-for-horses/2014-06-03-15-16-32/3960-assiniboia-downs
I say PQ is better than Allbreedpedogree because it is specifically for TBs and is more complete with their info. Sometimes connections upload info, too.