“ He was promoted lieutenant-colonel of engineers in 1866, and was thereafter in charge of river and harbor improvements in the New England states till 20 Feb., 1883, when, having been forty years in service, he was, at his own request, retired from active service. He became colonel of engineers in 1880, and was brevetted brigadier-general U. S. army, “for faithful and meritorious services during the rebellion.” ”