Major (CSA), Marshall McDonald

http://en.wikipedia.org/wiki/Marshall_McDonald

Marshall McDonald (October 18, 1835 – September 1, 1895) was an American engineer, geologist, mineralogist, pisciculturist, and fisheries scientist. McDonald served as the commissioner of the United States Commission of Fish and Fisheries from 1888 until his death in 1895. He is best known for his inventions of a number of fish hatching apparatuses and a fish ladder that enabled salmon and other migrating fish species to ascend the rapids of watercourses resulting in an increased spawning ground. McDonald's administration of the U.S. Commission of Fish and Fisheries was notably free of scandal and furthered the "protection and culture" of fish species throughout the United States.

From 23 NOV 1870 to 28 MAY 1873, he was a professor at Virginia Military Institute, Rockbridge County, Virginia.

http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=kgevering...

Data added per the DAR's "Lineage Book of the Charter Members" by Mary S Lockwook and published in 1895.