Hi Barbara: Sorry, Barbara. Couldn't find any old photos of Falmouth St. in Lawrence, Massachusetts.
Google Maps' satellite view shows Falmouth St. in Lawrence to be very short, only one block long. That means, unless the configuration of Falmouth St. was changed from what it was in the 1930s, that there is no 292 Falmouth St. But the house that seems to be #11 Falmouth St. looks from the Google Maps image to be a classic "triple decker."
You can search Google Maps for "11 Falmouth Street, Lawrence, MA" (in quote marks) and zoom on to get a look at the houses on Falmouth St. I think #11 is the house with the dark roof on the upper side of Famlmouth St. as you look at the map. There is a white car parked nose in next to the house.
Triple-deckers were built all over the New England states--Maine, Massachusetts, Rhode Island, New Hampshire, etc.--as inexpensive housing for workers. They were long, narrow, three-story wood frame houses that had one apartment on each floor. Perhaps 11A means that your relatives lived on the first floor (the ground-level floor in U.S. English) of #11 Falmouth.
Wikipedia has an article with pictures on triple-deckers at
http://en.wikipedia.org/wiki/Triple_deckerAnd the website of This Old House, an American TV show devoted to the restoration of old houses (obviously), has an article on a triple-decker in Boston that was renovated in 1990. There's a nice picture of the renovated house on the website. Granted, the pretty pink photo is not what your relatives would have been living in. Go to
http://www.thisoldhouse.com/toh/tv/house-project/overview/0,,197962,00.htmlFalmouth St. begins at South Union Street in Lawrence and runs one block west to a rail yard. The neighborhood is actually called South Lawrence because it is situated south of the Merrimack River from the center of the city of Lawrence.
Hope this helps.
Regards,
John
