Not nearly as interesting. Unless somebody were to claim that Lyndon used the name “Arthur Carl” to buy a rooming house in Dallas.
Here's something interesting I'm sure you're already aware of - the story told by Carroll Jarnagin (which can be found here:
https://www.maryferrell.org/showDoc.html?docId=10489#relPageId=587)
In this story Mr Jarnagin overhears a man called H L Lee talking to Jack Ruby about an attempt to assassinate Governor Connally.
In the story "Mr Lee" (he makes it clear this is a false name) has recently arrived from New Orleans, his family is staying in Irving and is a Marine sharpshooter. He is looking for money for an upcoming job - the assassination of Gov. Connally.
After the assassination of Kennedy, Jarnagin positively identifies Oswald as the H L Lee from the Carousel Club.