What follows below should be read in light of what Orthodoxy in the United States was during the forties, fifties and sixties. Orthodoxy certainly looked at least 'externally' different than it does today. In general, Orthodox Jews dressed in a fashion similar to their gentile neighbors. Most Orthodox men were clean shaven.
The third yahrzeit of HaRav Avigdor Miller, zt"l, occurred a few weeks ago. I had the privilege of knowing him as a talmid and on a personal level for more than 30 years, from about 1970 until his passing in 2001.