CPH to Stanford, Feb. 28, 1873, LB, 3:147, box 21, Hopkins Collection.
For break with the Crockers, Hopkins to CPH, Oct. 16, 1870, LB, 1:160-61, box 20, CPH to Hopkins, May 2, 1871, LB, 1:177, box 20, Hopkins Collection.
CPH to Hopkins, March 17, May 2, 1871, CPH to Stanford, June 6, 1871, Huntington Letters, 3:264, 271, 281.
CPH to Hopkins, March 10, 1873, LB, 4:3, March 17, 1873, LB, 4:21, box 21, Hopkins Collection.
For Cooke's optimistic assessments into June of 1873, see Cooke to Wm. Fenney, June 9, 1873, Letterbooks, 742 ff. , Cooke Papers.
For terms, Cooke to Johnston Bro. & Co, April 10, 1873, LBs, Cooke Papers.
Larson, Cooke, 401-3, 406.