I agree so we can rule out this man as the match
The Familysearch bio reads:
When James Sloan Baird was born about 1835, in Derry, Westmoreland, Pennsylvania, United States, his father, James Baird, was 44 and his mother, Mary Sloan, was 47. He lived in Derry Township, Westmoreland, Pennsylvania, United States in 1860. He died on 19 June 1864, in Gettysburg, Adams, Pennsylvania, United States, at the age of 30, and was buried in Blairsville, Indiana, Pennsylvania, United States.