Lewis S. Glynn (1855-1933) had a livestock business in Clarendon in the 1890's. He was the only child of Edgar Morris Glynn's 1st marriage to Persia Ormsby (1836-1862). See "Glynn Rifle, and a shooting" in the Artifacts collection for more info on Edgar.
Lewis was born and raised in Clarendon, was recorded as a cooper in the 1880 census for Shrewsbury, as a farmer in the 1900 & 1910 census for Clarendon, and then as a carpenter in 1920 in Rutland where he lived out the remainder of his days. He was married to Harriet Crossman (1858-1931). Both are buried in the East Clarendon Cemetery.
The image below is of the backside of the letterhead shown in the cover photo. The backside appears to be certain accounts Lewis kept in 1895/96.