Henry Roughton Hogg was an insurance adjuster in Rochester, NY, who was an avid book collector. His father was a historian in Rochester.
(This post was inspired by finding a copy of the awsome bookplate of his, you can see a copy here. -FarMcKon
The bookplate labeled "Henry Roughton Hogg" in the referenced link was a British scientist specializing in arachnids (spiders) who worked primarily in Australia and died in 1923 in London1. Could not find any link between the two other than the same name2.