When enemies (such as political enemies) “bury the hatchet,” they make peace between themselves. “Nobody ever forgets where he buried a/the hatchet” means that the parties are always ready to end the peace and to resume war again. “Nobuddy ever fergits where he buried a hatchet” is from an August 1929 comic strip of “Abe Martin,” created by “Kin” (Frank McKinney) Hubbard (1868-1930).
 
Famous Lines: A Columbia Dictionary of Familiar Quotations (1997) appears to show a Kin Hubbard citation in the >Indianapolis News of January 4, 1925, but the syndicated “Abe Martin” strips in other newspapers in January 1925 do not show any citation match for this month.
 
   
Wikipedia: Kin Hubbard
Frank McKinney Hubbard (born 1 September 1868 in Bellefontaine, Ohio - died: 26 December 1930 in Indianapolis, Indiana) was an American cartoonist, humorist, and journalist better known by his pen name “Kin” Hubbard.
 
He was creator of the cartoon “Abe Martin of Brown County” which ran in U.S. newspapers from 1904 until his death in 1930, and was the originator of many political quips that remain in use. North American humorist Will Rogers reportedly declared Kin to be “America’s greatest humorist.”
 
The American playwright, screenwriter and journalist Lawrence Riley wrote the biographical play Kin Hubbard (1949) in his memory. It starred Tom Ewell and June Lockhart.
 
Quotes
. Don’t knock th’ weather. Nine-tenths o’ th’ people couldn’ start a conversation if it didn’ change once in a while.
. Flattery won’t hurt you if you don’t swallow it.
. Nobody ever forgets where he buried the hatchet.
 
Wiktionary: bury the hatchet
Etymology
The phrase is an allusion to the figurative or literal practice of putting away the tomahawk at the cessation of hostilities among or by Native Americans in the Eastern United States, specifically during the formation of the Iroquois Confederacy, and in Iroquois custom in general. Weapons were to be buried or otherwise cached in time of peace.
Verb
bury the hatchet (third-person singular simple present buries the hatchet, present participle burying the hatchet, simple past and past participle buried the hatchet)
1. (US, idiomatic) To stop fighting or arguing; to reach an agreement, or at least a truce.
 
(Oxford English Dictionary)
to bury the hatchet: to put away strife, settle a quarrel, in allusion to the American-Indian ceremony of burying a tomahawk on the conclusion of a peace.
[1680 S. Sewall in New-Eng. Historical & Geneal. Reg. (1870) XXIV. 121   Meeting wth ye Sachem the[y] came to an agreemt and buried two Axes in ye Ground;..which ceremony to them is more significant & binding than all Articles of Peace the Hatchet being a principal weapon wth ym.]
1754 in Coll. Mass. Hist. Soc. (1836) 3rd Ser. V. 10   We have ordered..our Governor of New York to hold an interview with them [sc. the Six Nations] for delivering those presents, [and] for burying the hatchet.
1794 J. Jay Corr. & Public Papers (1893) IV. 147   To use an Indian figure, may the hatchet henceforth be buried for ever.
1796 J. Wolcot Wks. IV. 485   Gentle Reader, Wouldst thou not have imagined that the war hatchet was buried for ever?
1884 Harper’s Mag. Feb. 412/2   She buried the hatchet.
 
31 August 1929, Charleston (WV) Daily Mail, “Abe Martin” comic strip, pg. 9, col. 2:
Nobuddy ever fergits where he buried a hatchet.
 
11 January 1935, Riverside (CA) Daily Press,  “Uncle Eben Reviews the News” by Alvin C. Vance, pg. 3, col. 1:
No matter how poor a feller’s memory gets, he hardly ever forgets where he buried a hatchet.
 
Hathi Trust Digital Library
Thesaurus of Epigrams
Edited by Edmund Fuller
New York, NY: Crown Publishers
1943
Pg. 124:
Nobuddy ever fergits where he buried a hatchet.—Kin Hubbard
 
Google Books
The Best of Kin Hubbard:
Abe Martin’s sayings and wisecracks, Abe’s neighbors, his almanack, comic drawings
Edited by David S. Hawes
Bloomington, IN: Indiana University Press
1984
Pg. 28:
Nobuddy ever forgets where he buried a hatchet.
 
Google Books
Famous Lines:
A Columbia Dictionary of Familiar Quotations
By Robert Andrews
Robert Andrews
New York, NY: Columbia University Press
1997
Pg. 182:
Nobuddy ever fergits where he buried a hatchet.
KIN HUBBARD (F. [FRANK] McKINNEY HUBBARD), (1868-1930), U.S. humorist, journalist. “Abe Martin’s Broadcast” (1930), Indianapolis News (Jan. 4, 1925).
   
Google Books
Rogue Warrior:
Seize the Day
By Richard Marcinko and Jim DeFelice
New York, NY: Forge
2009
Pg. 353:
Nobuddy ever fergits where he buried a hatchet. — Kin Hubbard, ABE MARTIN’S BROADCAST, 1930
 
Google Books
Tweet This Book:
The 1,400 Greatest Quotes of All Time in 140 Characters or Less
Edited by Sayre Van Young, Marin Van Young
Berkeley, CA: Ulysses Press: Distributed by Publishers Group West
2011
Pg. 85:
Nobody ever forgets where he buried the hatchet.
Kin Hubbard