Henlow has a longer military history than most people realise, and while that's not directly relevant to local SEO, the village's position next to Shefford definitely is.
RAF Henlow operated for the better part of a century before much of the site was repurposed, and the village still carries some of that history in its character even now. Day to day, though, Henlow functions much like the other smaller places clustered around Shefford — close enough that a lot of genuine local trade and search activity naturally flows between the two.
For a business based in Henlow, the practical question is the same one that comes up across most of this list: does your Google Business Profile reflect where your customers actually search from, or just the village you're technically registered in? Shefford is worth including explicitly in your service area if you're not already covering it, since that's realistically where a meaningful chunk of nearby search volume sits.
Beyond that positioning point, nothing about Henlow changes the fundamentals — a properly completed listing, honest and current opening hours, and a small steady stream of genuine reviews will do more for your visibility here than any single tactic on its own.