The family photograph at above was provided courtesy of Edward P. Lawrence. Individuals shown are as follows, from left to right:
Back row: James Lawrence, Marian Lawrence Peabody, Dorothy Lawrence, Harold Peabody
Middle row: Marion Peabody Lawrence, Martha Whitney Peabody, [picture of Sam Peabody], John Endicott Peabody
Front row: John Endicott Lawrence, Gertrude Lawrence Peabody, James Lawrence
Dated: 1918, in front of the summer house in Brookline, MA
For a diagram of who they were, and how they all relate see below:
Clarification to the diagram above: Years after posting this, a product of some now-much-outdated genealogy software, I just realized the lines leading from Marion Lee (Peabody) Lawrence to her children, and the line leading from Harold Peabody to his child, are blurred, or overlap. This could cause some confusion. Pending an update/ redrawing of the diagram, Marion (and husband, James Lawrence) had three children: James, John, and Dorothy. Harold (and wife, Marian Lawrence) had one child: Gertrude Lawrence (Peabody) McCue.