Durango

Durango is the hero eponym of a western series comics created by Thierry Girod and Yves Swolfs, a fan from a young age of spaghetti westerns. It starts in 1981. For his character, the author drew inspiration from that played by Jean-Louis Trintignant in the Italian western The Great Silence. 

The main character is a lonely man, nicknamed "the peacemaker". It kills only in self-defense. From the second volume, Durango lost the use of his right hand. He quickly becomes good with the left hand and buys a Mauser C96, the first automatic weapon, which gives him certain advantages.
You can see Lucky Luke on page 15 from Gold Duncan. It is the same for the Lieutenant Blueberry and his companion McClure on horseback on page 17 of the album No Mercy.
The character Durango is a species of hero archetype Italian western - a kind of synthesis between Django, Silence and character that Clint Eastwood embodied in the first three westerns of Sergio Leone.

Blueberry

Blueberry is a Franco-Belgian comics western series created by the Belgian scriptwriter Jean-Michel Charlier and French comics artist Jean "Mœbius" Giraud. It chronicles the adventures of Mike Blueberry on his travels through the American Old West. Blueberry is an atypical western hero; he is not a wandering lawman who brings evil-doers to justice, nor a handsome cowboy who "rides into town, saves the ranch, becomes the new sheriff and marries the schoolmarm." In any situation, he sees what he thinks needs doing, and he does it.
The series spawned out of the original comics series "Fort Navajo" in 1963, but after a few stories breakout character "Blueberry" got his own spin-off and the series continued under this title. The older "Fort Navajo" stories are available under the name "Blueberry" too. Other spin-offs, such as "La Jeunesse de Blueberry" and "Marshall Bluberry", were created too.
It has been remarked that during the 1960s, Blueberry "was as much a staple in French comics as, say, The Avengers or The Flash here [in the USA]."

The story follows Michael Steven Donovan, nicknamed "Blueberry", a name he chooses when fleeing from his Southern enemies (which is inspired when he looks at a blueberry bush), starting with his adventures as a lieutenant in the United States Cavalry shortly after the American Civil War. He is accompanied in many tales by his hard-drinking deputy, Jimmy McClure, and later also by Red Woolley, a rugged pioneer.
Donovan is the son of a rich Southern farmer and starts as a dedicated racist. He is framed for a murder he did not commit, flees and is saved by an African-American. He becomes an enemy of discrimination of all kinds, fights against the Confederates, and tries to protect the rights of Native Americans.

Jonathan Cartland

Jonathan Cartland is the eponymous hero of a series of comic western designed by Michel Blanc-Dumont and written by Laurence Harle. Appeared in 1974 as Lucky Luke, it was published in ten volumes until 1995. It is one of "the most important contemporary westerns".
Jonathan Cartland is set during the conquest of the American West and describes the adventures of a trapper reflects humanism and close to the Indian population. It's a western close to nature and at times tinged fantasy describing life in the xix th century in the wild west.

In the first volume, the authors are struggling to differentiate themselves from their influences: history is only "a meager substitute Jeremiah Johnson" while Blanc-Dumont still very inspired by the work of Jean Giraud on Blueberry . However, the designer eventually finds his personality by refining his line while the scenarios Harle, who dye of fantastic from La Rivière wind, bring the Franco-Belgian Western in the still unpublished direction "Gothic Western ( ...) with its processions spells, traps, anxieties".Jonathan Cartland first appeared in 1974 in the monthly Lucky Luke, where westerns group Dargaud were published first. In 1975, the short stories are the subject of a book, plus unreleased. On the death of the magazine, the series is transferred to Driver, who pre-published tomes 4-9 until 1989. The last album is the only one left without pre-publication.