Passenger list for the schooner Hera, departed Seattle for Copper River 3/22/98, Seattle Post-Intelligencer, 3/23/98; Locator, “Sylvester Grogg” placer claim, No. 7 below Discovery, 7/20/98, witnesses Jepson & S. Johnson,TMDR, p. 56; Locator, “Niagara,” on Hertle Creek, 10/14/98, witnesses H. Smith, J. Manker, TMDR, p. 57; Crossed Valdez Glacier to Valdez, 11/19/1898 in storm with 9 men; 3 died on glacier. Frostbitten. A. Powell, Trailing. p. 95; Left Twelve-Mile Camp for Valdez Nov. 14, 1898 with Grogg brothers, Ferguson, Polinsky and Egram – party of nine -two returned, Mike Smith died, Brown in Glenn & Abercrombie, p. 623; Age, 40, began receiving rations from Quartermaster Brown at Army cantonment in Valdez, Nov. 19th, 1898, for 101 days, listed as a American with frozen feet, Brown, List of Persons Rationed;
Co-locator: S. Grogg and J.G. Snyder, 7/15/99 of claim #3 above Discovery (Dempsey, Hazelet, and Meals), filed in Sitka Mining Locations Bk. I, by Dempsey, power of Attorney with Hazelet and Meals witnesses, copy p. 17,Chisna MD Records, 1900;
Deed of Mining Property: Wm Grogg sells for $100 a 1/3 interest in “End Claim,” on Slate Creek (Recorded Bk. 1, CMDR, p. 190), “Sunset Claim,” (CMDR, p. 186), and “Last Chance,” (CMDR, p. 187) to Sylvester Grogg of St. Joseph, MO, on 12/15/1900, VMDR, 1900, p. 262; Agreement; The “East Side Claim,” No. 13 above Discovery “James Fish the purchaser of the right titile and interst of John G. Snyder and Melvin Dempsey attorney for Sylvester Grogg that the lower half of said claim should be assigned to Sylvester Grogg and the upper half to James Fish,” 2/5/1901, VMDR, 1900, p. 264;