Since we see www.findagrave.com links provided as free results on myheritage.com, I suggest that the "Find A Grave Memorial# " be made a distinct fact record field on myheritage.com

Additionally death certificate URL values such as http://www.sos.mo.gov/images/archives/deathcerts/1946/1946_00018507.PDF that are posted by the government sources should also be their own fact  record fields.

I work as a Database Admin. I like using myheritage.com and direct others that I meet through www.findagrave.com and at Ancestry.com to try myheritage.com