I must have seen John’s mentioned in the Indianapolathon thread but it failed to register. As with Workingman’s Friend, I found references to John’s elsewhere on the internet. Just before leaving I reread LTHForum and was surprised to come across John’s.
As for other internet sources,
this site (JiLS linked to it earlier) is quite useful. A very different site is this
Guide to Bars, Taverns, Dives, and Strip Joints of Indianapolis. It seems to have a lot of information you won’t find elsewhere, including a mention of Workingman’s Friend (not to mention a seemingly comprehensive section on strip clubs).