John Smith. Is this a reference?

[Wicked]

So in fake identification papers, our name is John Smith. Is this a Man in the High Castle reference? You know Obergruppenführer John Smith :D

[thebaconson]

It's probably because they are both the most common names around.
In places like the UK John is the most popular name in the last 500 years
and Smith tops the list for last names

https://www.express.co.uk/news/uk/655377/most-popular-names-last-500-years-revealed-Mary-John-Smith-baby-names-children

So it isn't a reference as such, its just a very common name that won't draw attention.