The first signals: a wireless message over the lake, a telegraph key at the Granger depot

ITEM 1 · 1899 · BOUNDARY: NOTRE DAME; THE GROUND'S OWN WIRE BELOW

The pattern case for this checklist item happened a mile from this ground's western line, and it is also this section's: on April 19, 1899, Jerome J. Green, head of the electrical department at the University of Notre Dame, transmitted a wireless message from the Basilica of the Sacred Heart — a 150-foot wire antenna hung from the 218-foot spire — to Saint Mary's Academy, over a mile away across St. Mary's Lake. Notre Dame's own record calls it the first known long-range wireless transmission in the United States, made with apparatus Green and his students built themselves rather than importing Marconi's; the Notre Dame Scholastic of April 22, 1899 carried the experiments (Science Hall to Sorin Hall first, then the basilica shot), the Chicago Daily News of April 18, 1899 headlined "Words Fly Through Air," and the message itself is believed to have been a single Morse letter — "O" — on the university's later account, the exact record being lost. Green then repeated the demonstration in Chicago between the Tribune and Marquette buildings. The event is Notre Dame's and South Bend's to own; it prints here at boundary size because it is the first-signal moment of the ground this CDP touches, re-enacted by both institutions on its 125th anniversary, April 19, 2024.

Granger's own first signal was wired, commercial, and railroad-borne. The wire therefore came with the railroad, decades before the telephone or the light bulb reached a Harris Prairie farmhouse: the depot key was this ground's first electrical communications instrument, and the man who worked it was the station agent — whose name stands in the transportation leg's gap GAP-T3 (agents' names unreached), and rides here unfilled rather than invented. The telephone's arrival on this ground, by contrast, is a named gap inside this dug article: searches of the county histories and the open record for a Harris or Clay Township first exchange, first subscriber, or first line returned no township-level fact (the neighboring Nappanee Telephone Company's 1898 founding is Elkhart County's record, printed here only to show the era's pattern). GAP-84-1a — the first telephone service on this ground, dated. Settlers: the Indiana Utility Regulatory Commission's exchange and territory records; Indiana Bell's exchange histories; the South Bend Tribune's full text.

Sources:

1. University of Notre Dame, "Words Fly Through Air" (go.nd.edu) and the Wireless Institute's 125-years record (wireless.nd.edu) — April 19, 1899; the 150-foot antenna on the basilica spire; Saint Mary's Academy; the Chicago Daily News headline of April 18, 1899; the Scholastic of April 22, 1899; the letter "O" as the university's belief, the exact record lost; the April 19, 2024 re-enactment.
2. University of Notre Dame Archives, ND History — the Science Hall to Sorin Hall progression; the Chicago Tribune/Marquette buildings demonstration; Scholastic, April 22, 1899, p. 494.
4. Nappanee Telephone Company history (Evelyn Lehman Culp Heritage Collection, via Coppes Commons) — the 1898 exchange founding in the adjoining county, printed as era pattern only.