Goose I have a pup that looks Walker in his markings as well. He is Cat/Walker and the Walker is only 1/4. That being said, his daddy was marked exactly the same way and he was only 1/8 Walker. I usually get at least 1 pup in every litter if not more that have the hound markings or coloring. Some are Walker tri color some are white with red, lemon, or brindle patches and a lot of them tick out more and more the older they get. The Walker blood in mine was Lipper (treeing walker). I think the catahoula has something to add to the ticking as well. I'm betting your ticking is from her side and not the running dogs. One of my mentors always told me that the Catahoulas started out as two basic strains, a Louisiana strain and a Texas strain. One bred bulldog into theirs for more bite the other bred hound into them for nose. I absolutely believe this. I have seen numerous papered cats that looked half to almost pure bulldog and I've also seen some papered dogs that looked like hounds in a merle wrapper. As said before, once it's in there...
My gyps sire and one of his littermate brothers looked identical, mostly white with some lemon/light brown and a little Merle patchwork, whenever either one of them was bred to my gyps mother there was always a walker patterned looking one or two in the bunch, there's not a person alive that can tell you what makes a catahoula, same as the black mouth cur, there's individuals who can trace their dogs lineages back for many many generations but can only go so far and even then the majority of that information is going off a human beings integrity and word and when it comes to dogs I've seen more than one instance of upstanding right living citizens get a little crooked when it comes to a dog, by no means am I calling anyone out or a liar, just stating the obvious when dealing with dogs, it doesn't make a hill of beans to me what's behind them, my only concern is where they're headed, not just my dogs but dogs in general, there's glass eyed running hounds with Merle coats and glass eyes have been seen in treeing walkers (which themselves came from running walkers) and blue ticks, and back when dogs were mainly bred for a necessity a man had to breed in and add what was missing and needed to get the job done so only God knows what's actually behind all our dogs, I wholeheartedly believe what you said about the two different strains of catahoulas because I've seen it as well, I sent a gyp to Mackie Strong, whose sire was one of the males mentioned above and her mother was a half sister to him, the mother to that gyp was by far the coldest nose cur dog I've ever laid eyes on, on more than one occasion I saw her put her nose in a track in a road and throw her head up and bawl and do the same on the next track, all the while there were other so called cold nosed dogs all standing around on their tails, these instances weren't just flukes, she was just way above the grade in the nose department, and then I've seen some that were straight catch, I owned one when I was a teenager, my dad got him for me when I was in the 7th grade and he died when I was 20, he had absolutely no bulldog looking attributes about him if anything he looked like he was part lab, he was off some old stock that had been used to first settle this area and the old timers just always kept a pair of them and every few years one of them would make a litter, his parents were around 10 when he was born, he would literally catch a 2500lb bull by the nose, set any boar hog on his ass, but had enough finesse that he slept inside every night and was my sisters guardian, he would lay for hours letting her do whatever she wanted and would walk in between her and the water and nudge her back up on the bank when my parents would bring us to the creek, just as soon as he saw me with a leash in my hand he went in business mode, I used him as a catch dog and even competed with him regularly at the catch dog trials we used to have around here, definitely a different type of cur dog than what I have today...