@WobblyHand ok, I am waiting for some assistance from the developer. In the meantime:
Member Search will auto suggest member names as you type in the search box. If somebody else has the username @wobblyfoot, it might suggest that before it suggests your username. This feature is useful because we can't remember how to spell some of the odd usernames people dream up so the forum software provides an assist for you.
For some reason, in the case of deceased members, their usernames are not auto-populating when users search for their names. However, IF you know the exact spelling, you can still search. So, when you are typing in M-i-k-e-....all of the other usernames that are active will auto suggest. What you need to do is type the name in exactly, then click outside of the search box so the other auto suggested names clear away and then you can press enter. Hope this makes sense. Give it a try.
This gets tricky with a username like Bob Korves. Is it BobKorves, Bob Korves or Bob_Korves? You have to know the spelling to get there. I am determined to get an answer from the developer in the meantime. Hopefully it is just a toggle setting I am unaware of.