The Harriette Thrasher Volumes
Entitled "The Clan Chisholm and Allied Clans", the books were published in New York in 1935.
Harriette F. Thrasher was a researcher engaged to write the 3 volume set as a gift from Hugh J. Chisholm Jr. to his father Hugh Joseph Chisholm who was a pulp and paper industrialist and entrepreneur based in Maine, USA.
The books contain valuable genealogical material from family records in the early 1800's.