What was Paladin's real first name from the show?

According to two sources that I found, he had no other name.

Stories revolved around gun-for-hire with principles, Paladin (his real name was never revealed).

http://www.otrcat.com/have-will-travel-p-1373.html

The show followed the adventures of "Paladin" (no other name is ever given)

https://en.wikipedia.org/wiki/Have_Gun,_Will_Travel

Paladin's first name is "Bobby". Episode: " Fandango" . When Paladin meets shieriff Ernie; Ernie call him "Bobby". He goes on to say "It's been a long time since Bull Run".

"Bobby" wasn't Paladin; he was one of the guest stars, Bobby Olsen, played by Andrew Prine

141 :04x24 - Fandango
First aired: Mar/04/1961
Writer: Harry Julian Fink
Director: Richard Boone
Guest star: Karl Swenson (Lloyd Petty), Lisa Lu (Hey Girl), Jerry Summers (James Horton), Andrew Prine (Bobby Olson), Robert Gist (Sheriff Ernie Backwater), Rodolfo Acosta (Sanchez)
Paladin and a sheriff friend are on the trail of two young killers who escaped from jail. But so is the gunslinger brother of the man they killed.

https://www.imdb.com/title/tt0597515/

Episode synopsis : http://www.reviewstream.com/reviews/?p=119770

episode Fandango (Season 4 Volume 2 Disc 1)
The sheriff is looking at and addressing the prisoner, named Bobby Olson (played by Andrew Pine) when he says "Hello Bobby" at time mark 04:32. Then the sheriff turns his head towards towards Paladin and Paladin says "Hello Ernie, how are you?" To which the sheriff responds "Fine" and Paladin then says "Its a long time since Bull Run and Shiloh" So it does not appear the sheriff is calling Paladin "Bobby". Also it is interesting that Paladin uses the Union name "Bull Run" (Confederate name "First Manassas") for the one battle and the Confederate name "Shiloh" (Union name is "Pittsburg Landing") for the second battle he mentions. Normally, you would expect a Union soldier to consistently use the Union names and a Confederate soldier to consistently use the Confederate names.

https://en.wikipedia.org/wiki/Talk%3AHave_Gun%E2%80%93Will_Travel#Was_Paladin.27s_first_name_Bobby.3F