I just started looking up my family history. My great grandfather's name was Manuel DeCosta, although I have seen the spelling a few different ways, including DaCosta. He married Julia Moniz. I was told he was from New Bedford, Massachusetts, however, I have not been able to find info on him and most of my family has passed away. Their daughter's name (my grandmother)was Emily (married Manuel Manish-my grandfather). Her obituary says she was born in Taunton, Mass. She had two sisters Josephine (married a Costa) and Mary (married a Ponte) and lived in Rhode Island. I see you have been searching a long time. I'm new at it but am willing to share information with you to see if we are related. Thank you. CManish