Nell (Helen) Cosgrove (1907 Sagebrushers traveler)
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Nell (Helen) Cosgrove (1907 Sagebrushers traveler)

Also known as: Helen Cosgrove, Miss Helen Cosgrove

family confidence: 0 — not family / context

Party member #6 on the 1907 diary; sister of Kate. "Nell" is taken to be the pet form of Helen: Kate's sister is "Miss Helen" in 1899 (inference, 0.75). Helen Cosgrove of South Butte was a school registry agent with an office at 1104 Utah avenue (1902), leader of St. Joseph's choir (1902) and a soprano in it beside Kate at Easter 1910, still "Miss". Possibly the Helen Cosgrove, 1872-1932, buried in Holy Cross Cemetery, Butte (Find a Grave 141238393; name and place only, 0.55; not adopted here). NOT the Havre Helen Cosgrove (b. c.1895), Ellen Hennessey Cosgrove (1868-1889) or Elinor "Ellen" Bailey Cosgrove (1865-1924, Anaconda). Research: research/docs/sagebrushers-companions-2026-09-28/cosgrove-sisters.md

Facts

Each fact shows how sure the archive is of it (0–100) and the sources it rests on.

Residence:
Butte, Montana
Affiliations:
School registry agent, South Butte precinct, 1902, St. Joseph's parish, South Butte (choir leader 1902; choir 1910)
DateFactConf.Sources
1902occupation · school registry agent for a South Butte precinct: "Helen Cosgrove, agent; office, 1104 Utah avenue" (Butte, Montana)

Butte Inter Mountain 22-29 Mar 1902 p. 6 and 29 Apr 1902 p. 8 (research note). Capped by the Nell = Helen inference.

70
1902-1910membership · St. Joseph's church choir, South Butte: "Miss Helen Cosgrove, leader" (1902); a soprano beside Kate at Easter 1910 (Butte, Montana)

Butte Inter Mountain 21 Jul 1902 p. 7; Butte Independent 26 Mar 1910 p. 3 (research note).

70
1907-07-25event · "Nell Cosgrove. )" sixth on JJM's pencil list, bracketed with Kate; on the trip 25 Jul - 23 Aug 1907 (Yellowstone National Park)

JJM's own pencil list (manuscript scan, heading "Party composed.") and the 1994 booklet ("Party pairs:" is Dan Murphy's heading). One primary record, written by a member of the party: 95.

951907-07-25 — James J. Murphy's diary of the 1907 Yellowstone trip (original pencil manuscript, "Crown Memorandum" pocket notebook); 1907-07-25 — The Sagebrushers — Jim Murphy's Travelogue through Yellowstone National Park, Told in His Own Words
1907-08-08event · "Nell struck up a conversation right away by passing me a box of candy" when the rest of the wagon was sulking at JJM (Yellowstone National Park)

Booklet p. 23.

951907-07-25 — The Sagebrushers — Jim Murphy's Travelogue through Yellowstone National Park, Told in His Own Words
1907-08-12event · when the horse Sandy plunged at Norris, "Nell jumped clean out and Kate after her" (Yellowstone National Park)

Booklet p. 31.

951907-07-25 — The Sagebrushers — Jim Murphy's Travelogue through Yellowstone National Park, Told in His Own Words
1907-08-15event · cooked with Kate after the cooks were paid off (pp. 36, 42)

Booklet pp. 36, 42.

951907-07-25 — The Sagebrushers — Jim Murphy's Travelogue through Yellowstone National Park, Told in His Own Words
1907-08-22event · "Along the road Nell saw a snake coming from the opposite direction" (the rattler Tish killed)

Booklet p. 42.

951907-07-25 — The Sagebrushers — Jim Murphy's Travelogue through Yellowstone National Park, Told in His Own Words
1910-03description · still unmarried ("Miss Helen Cosgrove") at Easter 1910 (Butte, Montana)

Butte Independent 26 Mar 1910 p. 3 (snippet), via the research note.

70
—name · probably Helen Cosgrove, Kate's sister ("Nell" a pet form of Helen)

Research pass 0.75 (cosgrove-sisters.md section 4): Kate's sister is "Miss Helen" in 1899, and no Ellen or Eleanor Cosgrove sister is known. An inference from a nickname plus the sister relationship; the diary never writes "Helen".

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Person ID: person_nell_cosgrove_sagebrusher