Macnulty Rollins David

I need assistance researching my family.My father, Leo F McNulty whos Mother was Georgianna David MacNulty and John Francis MacNulty(John was born in Pennsylvania).Im looking for gravesite info, photos, any possible info on my family. My parents eventually settled in Danvers Ma.
Both my grandparents married two times after they split, I know the Rollins family-of Danvers was one of the men my Gradmother married.
I appreciate any-info you may have, Thank you.