Respectfully Roger my original post was:
There are "better" writers (ones I enjoy more) than Jack Kerouac -- but still he remains the most important to me personally.
The key words are "to me personally." I was deeply introduced to Kerouac by his friend Allen Ginsberg, who I was fortunate to spend time with when I was 20, and later.
Kerouac defines the 3000 mile American road trip of the '50s and early '60s, in a way that has formed much of my creative thinking. Yes it is peculiarly American, just as a drive in a Caddy though Mexico is peculiarly Mexican.
Driving US Route 66 before the super-highways cannot be recreated. One can only be 18 in 1960 if in fact -- one was 18 in 1960. You did not come of age in America in the '50s or '60s -- so how could you possibly know what I feel defines my thinking the "most" means to me?
There is a NYC expression, made famous in "Taxi Driver" (I know you have never heard of it, but Google it) "You talkin' to me? You talkin' to me? You talkin' to me? Then who the hell else are you talking... you talking to me? Well I'm the only one here." Many RFF members fail to see that they are not the only one "here."
"Parochial" is a strange kind of weasel word, when applied to the American experience. Kerouac, John Coltrane, Tennessee Williams, Muddy Waters -- are uniquely American, but certainly no one would use the word "parochial" to describe their influence (Google Rolling Stones a UK band).
The expatriate poet Ezra Pound, born in the Idaho territory, seems to exemplify the flexibility of the American writers, to me.
So no matter how many English photographers you mention, they will never appear in an alternate American experience, where the US remains a colony of the UK. I speak with an Ozark lead miner's accent the only truly parochial aspect of my life.