Wednesday, January 4, 1922

10 above ZERO. Arose 6:30 A.M. Breakfast etc. To Amsterdam on business 8 A.M. to 3 P.M. Chored around. Supper. Home in evening. Played piano. Wrote to H.H. Talked. To bed 10 P.M. Father to court.

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Why Stillman went to court that day is unknown.

Amsterdam, NY was only about 16 miles from Schenectady. Stanford probably took State Route 5, along the Mohawk River, to get there. This map plots his possible route:

At the time, however, the route was not yet called NY State Rte 5. As this excerpt from Wikipedia notes, this portion of the route was until 1924 part of the Yellowstone Trail, extending from Washington State to Massachusetts, with a spur that led to Yellowstone National Park. (If you click on the link for Yellowstone Trail, you'll get more information about that route.)

The automobile allowed people to quickly travel long distances and a way to mark routes became needed. One early means of marking routes was the establishment of various auto trail associations in the 1910s. These associations selected good quality roads and marked them with symbols or colors on telephone poles. Most of legislative Route 6 eventually became part of the Yellowstone Trail,^[24] a cross-country auto trail established in 1912 that ran from Washington to Massachusetts.^[25] In New York, the trail used modern US 20 from Pennsylvania to Silver Creek, most of modern NY 5 from Silver Creek to Albany, and modern US 20 again from Albany to Massachusetts.^[24]

Below is an old map of the Yellowstone Trail.  Note the spur to Yellowstone NP in southern Wyoming:

"Yellowstone Trail Map" by JRidge at en.wikipedia. Licensed under CC BY 2.5 via Commons - https://commons.wikimedia.org/wiki/File:Yellowstone_Trail_Map.jpg#/media/File:Yellowstone_Trail_Map.jpg