Thanks for posting this reference, and I just have to ask whether it was a Dr. Drury Massey of Cape Girardeau/ Bollinger County Missouri whom you have researched? I do not know whether he participated in the War, but his sons certainly did.

Dr. Drury Massey was born in about 1797 in North Carolina. He is found on the 1850 census of Cape G County, age 53, b NC, "physician", with his family.
Also on the 1860 Bollinger County MO census: age 63, occupation: physician.

He does not appear in 1870. His widow is there in Bollinger County. Have done quite a bit of information-gathering re: the widow and sons of Dr. Drury. Perhaps this family is familiar to you?

Best Regards,
Cynthia Benua