Fall 1838
Public meetings were held at the Beloit House to choose a better name than Turtle or New Albany, and a committee of three chose the name Beloit.
The evidence
“Those early villagers, disliking the Indian name, Turtle, as too slow, and Blodgett's name for the settlement, New Albany, as too fast, in the fall of 1838 held at the Beloit house several public meetings for the purpose of choosing something better. As no agreement could be reached the matter was finally left to a committee of three.”
1908-brown-rock-county/06-history-of-beloit.md, Vol. 1, PDF p. 157 / book p. 141
Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.
Grade A: Found on a page of one of our sources
“Rock County, Wisconsin; a new history of its cities, villages, towns, citizens and varied interests, from the earliest times, up to date . w known as Yosts park. Here in a log house was bornthe second white child in Beloit, Williams brother, Selvey K., Jr.,June 10, 1838. Caleb Blodgett had named the settlement New Albany, butthe later arrivals in the village disliked that name, so that inthe fall of 1838 a committee of three chose the new name, Beloit. In Caleb Blodgetts house, using Calebs large family Bible,twenty-four members founded the First Congregational churchof Beloit, December 30, 18 Stock Photo - Alamy Hi there! Lightboxes Share Alamy images with your team and customers Create a lightbox › All images All images Photographs Vectors Illustrations 360° images Video Live news Search by image Search for images Search for stock images, vectors and vid”
alamy.com, https://www.alamy.com/rock-county-wisconsin-a-new-history-of-its-cities-villages-towns-citizens-and-varied-interests-from-the-earliest-times-up-to-date-w-known-as-yosts-park-here-in-a-log-house-was-bornthe-second-white-child-in-beloit-williams-brother-selvey-k-jrjune-10-1838-caleb-blodgett-had-named-the-settlement-new-albany-butthe-later-arrivals-in-the-village-disliked-that-name-so-that-inthe-fall-of-1838-a-committee-of-three-chose-the-new-name-beloit-in-caleb-blodgetts-house-using-calebs-large-family-bibletwenty-four-members-founded-the-first-congregational-churchof-beloit-december-30-18-image338198796.html
Grade B: Found on an institutional web page