I am assuming that "Major John Hammond" is this individual. Needs verification.
Noted events in his life were:
• Received: part of 4 plantations bordering his own dwelling-plantation on Elk Ridge from Major Edward Dorsey, 4 Jan 1701, Baltimore (Anne Arundel then Howard), Maryland, (United States). "…for disposing of goods and chattels for advancement of our children after death." These 4 plantations were apparently to be held jointly by Major John Hammond, Captain Charles Hammond and Edward Dorsey.
John married Ann Dorsey, daughter of Major Edward Dorsey [Jr.] of "Dorsey" and Margaret Ruth Larkin.
1 Warfield, J. D, The Founders of Anne Arundel and Howard Counties, Maryland. (Baltimore: Kohn & Pollock, 1905), p. 58.
Spencer, Richard Henry ed, Genealogical and Memorial Encyclopedia of the State of Maryland. (New York: American Historical Society, 1919.), p. 612.