I ws born in Massachusetts. My father's family migrated to a city called Haverhill (Pop. 40,000)in the Merrimack Valley near New Hamphire at the turn of the 20th Century from Lawrenceville, Va. My mother's father moved from Atlanta because Boston Pullman Porters had what he considered better runs. That was around '39. Black concentration in the 19th century was in Boston's South End. For the period about which you inquired- Roxbury (my birthplace)was predominantly Jewish until the 1940's. It became Black. After WW II there was also a significant Black concentration in Jamaica Plain and the South End- but the latter was still a "melting pot" w/ Armenians, Greeks,Jews. Cambridge also grew in Black population- the city on the other side of the Charles River. An hour north, Lynn, Mass. on the Merrimack River has the most Blacks and has since 1910, followed to lesser degrees by Lowell and Haverhill. An hour west- Worcester is probably 20% Black- the home of Holy Cross College.

Do you know their street names in 1910?

Hope this helps,

Bijan