The Thomas P. Cottam collection includes record and account books kept for several ventures, a license certificate for the St. George Coop, a deed, and a piece of paper found in one of the tax record books. Three of the account books were kept by Cottam when he was the Washington County Assessor and Collector and are believed to be his personal records of assessed values and taxes owed or paid rather than the official county records. Among the other record books are those for the St. George Tanning and Manufacturing Company, which was promoted by Cottam and for which he was also a major stockholder. The project was a second attempt at running a tannery in the northwest section of St. George and ultimately failed. There is also an account book for the Webb Ditch, which is believed to be the area of St. George just south of what is now the River Road bridge, the bench now known as St. James Place or Cottam Bench.
The other record and account books include Thomas Cottam's account book for building the original Dixie Stake Academy building; an account book that records donations to the Salt Lake Temple, Manti Temple, and other causes; a monthly time diary that was used to record the hours and/or days worked on the Dixie Stake Academy and projects on the tabernacle and temple grounds; and George Woodward's account book that records his contributions to the Woodward School, the town hearse, and other dealings.