Breeder and Sportsman
Horse To Kalon mentioned on a list of all 2:30 performers which trace to sires that were bred or won in California, as well as those that have won heats that year throughout the United States (see Volume 31 of The Breeder and Sportsman for repeat entries of this same article).
"California's 2:30 List." Breeder and Sportsman 31, no. 17 (October 23, 1897): 264.