Roger Conant Decendent

I am trying to figure out if I am a direct descent of Roger Conant of Salem, Mass.

My Father: Edward Milan Conant
Grandfather: Parks Delbert Conant
Great-grandfather: Milan Conant

Milan and his wife, Florenda, lived in the Oregon/Idaho area around 1900. Parks was their son. He was born in Kalispell, MT in 1892.

That is about all that I know.