Some sources call him Henry Martyn Barnum.
From the Middlebury Register, Middlebury, Vermont, May 10, 1911: Henry Martin Barnum died at Freeport, Illinois, Wednesday night May 10, 1911 at the Globe hospital where he had submitted to an operation. Mr. Barnum was in the 77th year of his age. The deceased was taken from his home to the hospital a week before his death in the hope of prolonging his life, but it was otherwise willed. Mrs. Barnum preceded him to the beyond on September 15, 1910. Mr. Barnum was a native of Shoreham, Addison County,where he was born February 6, 1835, and where he grew to manhood. He received his early education in the district schools of this county and fitted himself for Middlebury College, graduating in the class of 1858. Mr. Barnum taught school for three years in Little Falls, N. Y., following which he went West and located in Freeport, where he began the study of law and, having brought his studies to a successful completion, he was admitted to the bar 1861. Although being well qualified to begin practice at once he decided to wait a few years before so doing and in the meantime accepted a position as teacher in the public schools of Freeport. He was subsequently appointed principal of the high school and held that position until the year 1864, when he resigned to enter the practice of his chosen profession. On August 8 of that year he was married to Miss Ellen P. Wright of Shoreham, in this county. Returning to Freeport he became associated with H. C. Burchard and E. P. Barton in the practice of law,the firm being known as Burchard, Barton and Barnum, and continued with them until 1891, when the firm dissolved. He then formed a partnership with Mr. Barton which lasted until the death of the latter in 1893. In 1867 Mr. Barnum was elected city attorney and subsequently held the office of justice of the peace as well as other offices. He took a prominent part in all matters of an educational nature and was for several years a member of the board of education and public library board. Mr. Barnum ranked among the foremost in his profession and was held in the highest esteem and regarded as a safe counselor and a lawyer of excellent judgment. The body was brought here Sunday morning on the newspaper train and taken to the home of A. J. Blackmer, whose wife is a niece of the deceased. The funeral services were held Monday afternoon at 2 o'clock in the Congregational church at Shoreham, his native town. President John M. Thomas, of Middlebury College, a family friend, officiated, assisted by the Rev. Charles Wattie, pastor of the church. Interment was in the Lake View cemetery. Mr. Barnum is survived by two nieces, Mrs. Arthur J. Blackmer and Mrs. F. S. Whiting of Burlington and a cousin, Miss Ella Munn, who accompanied the remains from Freeport, besides several distant relatives in Shoreham.