Lynch, daughter of Raymond Doyle

I know that Bernard Doyle MD died in San Franiciso around 1960 I think. His mothers maiden name was Ella V Joyce and he had 3 brothers. One of those was Raymond, who married ?, and had at least two daughters. One of those daughters married a ? Lynch. and I believe lived in Northampton(Florence area).
When my late aunt died she left some paper work and Bernard and his mothers names were among the names mentioned.
I am trying to find the connection between my family and them.
My deceased aunt was Mary Rita (Bradley) Lynch. She married John Henry Lynch of Newburyport, and they lived in Salem MA all their married lives. Jack died in 1988, and Mary around 1997. I am wondering if the connection is thru the Lynch that one of Raymonds daughters married, since that is the only common name.
My names O'Donnell, Bradley, Sweeney, Nelson(from Finland - dads family) Lynch, Murphy, Kelleher, and all but the Nelsons lived on the north shore(Salem, Newburyport area)

If anyone can help or sees a connection I'd love to hear from you and since gen form is going to read only at end of sept 2014, please e-mail me at barb19401@verizon.net.
Tell me where you think,(if you think) theres a connection , and leave a e-mail address since it will be impossible to respond here.

Thank you and sorry for rambling.