Kyle, I just saw your post, and it may be WAY to late to be of any use, but if you give me an email address, I can send you the correct...official Dorsey coat of arms, which happens to be rather odd. Its a knights helmet, with a red three corner hat on top, and a bull on top the red hat. It has a blue field beneath, with what appears to be white snowflakes within. I will send you a photo.
jdirishman@hotmail.com