https://reference.insulators.info/publications/view/?id=2808
Oct 22, 1885 : Western Flint Bottle Association - Pittsburgh Meeting - Representative of Hemingray...
octwesternflintbottleassociation
https://www.billandjillinsulators.com/auctions/145/view/?lot=142&view=2
CD 241 HEMINGRAY-23 Hemingray Blue; Good for 23 hundred volts or more!
CD 241 HEMINGRAY-23 (multipart porcelain insulator) Color: Hemingray Blue Description: Some drip chipping, a small flake at the base of the threads. The style...
or morecdhemingraybluegood
https://drc.libraries.uc.edu/items/2fdfd67f-c014-4d30-a8e7-848339368199
Hemingray, Daniel Carrol. (Death, 1911-12-14)
hemingraydanielcarroldeath