I came across the following family sketch for Henry Yerden, father of Alexander D., at the Jeffeson County nygenweb site:
http://jefferson.nygenweb.net/childale.htmThe following family group descriptions are adapted from Hamilton Child's "Gazetteer of Jefferson County, N.Y.", published in 1890. The families are arranged alphabetically by township, and wherever possible, a link has been made to a Jefferson County Pioneer. We welcome any corrections and additions to the information presented.
Henry Yerden was born in the Mohawk valley, whence he removed to Fowler, St. Lawrence County. He married Polly Klauss, and they had 10 children, four of whom survive, namely: Maria, Rebecca, William H., and Alexander D. The latter was born in the town of Fowler, October 30, 1839. February 19, 1866, he married Fidelia, daughter of Thomas Hazelton, of Hammond, N. Y., who was born March 13, 1850. They have had three sons and three daughters, namely: Carrie A., who was born November 12, 1867; Charles D., who was born February 23, 1871; Mary M., who was born September 29, 1873; William H., who was born March 30, 1876; Martha E., who was born September 24, 1878; and Thomas E., who was born Mary 15, 1884. In 1885 Mr. Yerden removed with his family to this county, and now resides in Alexandria Bay. He served nearly three years in the late war, was in 15 general engagements, and was wounded at the battle of Cold Harbor, June 4, 1864.
I am trying to find out if Alexander the father of your charles perhaps is also the father of my William but havent been able to prove it.
(this was recently sent to me, hope it helps!)