From Islapedia

Platt's Harbor, Santa Cruz Island

PLATT, J. F. ( - ), United States Coast Survey employee who served as an aid in field operations for triangulation and topographic surveys of Sabine Pass, Texas in 1874. It is not known if Platt ever worked on the Channel Islands, however the harbor on the north side of Santa Cruz Island which bears his name, carried the name as early as 1857 when William E. Greenwell surveyed in the area.

Platt’s Harbor, Santa Cruz Island (» also Dick's Cove), is the next adequate anchorage on the north side of the island to the west of Twin Harbors, with Orizaba Flats in between. It is thought to have been named for U.S. Coast Survey employee, J. F. Platt, not known to have visited the island. It is also the name of a survey station established by William E. Greenwell and his aid, Preston C. F. West on Tuesday, July 21, 1857. “It is on a point on the northern side of the island, westward from Prisoners’ Harbor covered with pines. A way of getting to it is to go to Platt’s Harbor and ascend the hills on the east side. A better way may be found by landing midway between Platt’s Harbor and Prisoners’ Harbor.” Dick’s Cove inside the harbor was used historically as a camp location. The place name appears on Forney’s 1875 island survey map. This place name and triangulation station appear on the Santa Cruz Island Sheet B topographic map.

1886: Ornithologist Eli Whitney Blake, Jr. reported on the distinguishing characteristics of the Santa Cruz Island flicker. Blake visited Santa Cruz Island twice in 1886: on July 4-24, 1886 and again August 6- September 3, 1886. On his first trip, he noted:

“Santa Cruz Island is owned by a stock company and is used as a sheep ranch; the herders constitute the only human inhabitants... Our camp was in a canyon near Platt's Harbor, on the northern side of the island.”

In the News~

June 29, 1931 [SBMP]: “Four persons saved their lives when they jumped off their disabled yacht, Typhoon, as it was pounded to pieces on a reef off Platt’s Harbor, Santa Cruz Island, by a tremendous sea early yesterday morning. Out of gasoline, the jib sail torn to shreds and a 60 pound anchor almost useless against the tremendous swells, the boat was carried more than a mile down the rugged coast. On the boat were Mr. and Mrs. Frank C. Learned and J. E. Knowles and Miss Elizabeth Bakewell. They were rescued by members of the crew of Major Max C. Fleischmann’s Haida, after a 12-hour vigil from a cliff-bound stretch of beach. Nothing of the boat was saved.”