Travel time on the Valley road.

Per Lynn's suggestion, I'll offer a comparison between times Sacramento to Folsom on the SVRR/S&PRR and between Sacramento and Rocklin–both distances 22 miles.

1901:
S to F: 1 hr. 40 min on mixed train, 55 minutes on passenger.
S to R: 50 minutes on passenger train w/one stop, 57 minutes on train w/two stops.

1895:
S to F: 1 hr. 25 min mixed w/ 11 stops, 1 hr passenger w/11 stops
S to R: 55 min w/ 1 stop fast mail, 50 min w/4 stops Overland express.

An undated timetable reproduced in back of Gerry Best's "Iron Horses to Promontory" (which lists Mark Hopkins and E.B. Crocker as officers–so pretty early):
S to R: 2 hr 15 min on mixed, and 1 hr 5 min on express. Both of those are actually from departure in Sacramento to departure of train from Rocklin, so times actually should be one station-stop shorter.

Wendell