I'll ask Bill what he knows about him, at least it would be a contemporary view. takes time because he has no email and I have to write and await reply.
It seems that even Bill didn't know his Christian name. Aldridge gets four mentions in Boddy's Brooklands history, all from 1925 and all simply as "Aldridge".
From the report of the 1925 Whitsun meeting -
"New entries comprised ... Aldridge's Super Sports 12/50 Alvis ... ... Benjafield took the Private Competitors' Handicap with ease, his dark blue Salmson lapping at 85.72 mph to win at 77.33 mph from Aldridge's 86 mph Alvis and Malcolm's 'limit' ex-Gordon England ABC." (pp 167-8 Revised Edition 2001)
And from the 1925 BARC Autumn Meeting -
"The very first race, a 75mph Short Handicap, made history, for sweeping up the Finishing Straight on the run-in, Purdy's 12/50 'duck's back' Alvis and Turner, in Newman's orange 2-litre Austro-Daimler, were seen to be exceedingly close and they were level as they shot beneath the flags - a dead-heat. ... The Austro-Daimler had overtaken two other Alvis cars, driven by Aldridge and Jackson, on the nearside and had then swung over to draw level with Purdy on the other side. Aldridge was third after a lap of 85.13mph."(p 178 Revised Edition 2001)