[2][1][3] It is 19 miles (31 km) long; is named for its first settler James Collins, a salt maker and hunter; joins Goose just south of Garrard; and is paralleled by (Kentucky Route 11) road and (Cumberland and Manchester Railroad branch of the L&N) railway for most of its course.

[2][3] The mouth of Collins Fork is 2.5 miles (4.0 km) upstream of Manchester at altitude 800 feet (240 m) above sea level.

[6] She named it for the preponderance of willow trees in the area, which was likely at the mouth of Furnace Branch/Saplings Fork.

[6] His original choice of name was Harding, which clashed with an already existing Hardin postoffice in Marshall County, his choices of names presumed to be politically inspired by Republican Presidents Abraham Lincoln and Warren G.

[20] Over its life it occupied several sites on Bull and its tributaries, including at the creek mouth; one of its postmasters was Henry W. Cobb; and it closed in 1983.

[20] It was not on Collins Fork proper, but on an unnamed tributary that was, per the details of the application, 5 miles (8.0 km) northeast of the (second) Hopper post office (see below).

[20] Postmaster Henry W. Cobb (of the aftermentioned Sprule) moved it across the border, to a site 500 feet (150 m) from it on the other side, on 1924-10-06, putting it 1 mile (1.6 km) north of Criss.

[20] It moved several more times along Collins Fork over its lifetime, eventually ending back 0.5 miles (0.80 km) north of the border in Clay County again.

[20] It was at the mouth of Buncker Branch, 0.5 miles (0.80 km) south of Green Road Station on the C&M railroad.

[23] Fielding Hamming had a mine 2 miles (3.2 km) upstream on Horn Branch.

[5] However, that name clashed with a postoffice in Lawrence County and his next preference was Bluehole (after the common Kentucky geographic feature of a blue hole).

[5] Its next postmaster, Ella Perkins, re-located it nearer to the new railway station of Rodonnel, placing it 2 miles (3.2 km) up Collins Creek on 1918-05-01, and from then until its closure in 1985 it was located at several places along Collins Creek and Kentucky Route 11.

[5] The first Hopper post office was established on 1891-11-27 by postmaster Columbus Troubman at the mouth of Hammond Fork.

[3] Postmaster and storekeeper Louis Henderson Jones relocated it in 1881 onto Collins Fork, the location specified as 2 miles (3.2 km) north-east of its prior location and 3 miles (4.8 km) east of a Jarvis Store post office.

[3] Postmaster Tyre Y. Marcum relocated and renamed it yet again in 1895, to the site of the earlier Hopper post office, giving it the same name.