Assign FROM: email address used with some Contacts

I have one special email account that I use for one type of correspondence; genealogy. When sending email to someone I only correspond with about genealogy I have to remember to change the FROM: account used from my default mail account to that special account. I sometimes forget and expose my default personal primary account. Is there a way to assign the FROM: mail account to individual contacts. So, when I select the TO: the FROM: is automatically assigned?