I don't remember if I ever pointed this out, but in the Apollo 13 Mission Operations Report, the EECOM team gives a brief shout-out to the EPS team for their performance during the anomaly. That would, of course, zero in on Dick Brown as he was the prime EPS responsible for tracking the O2 Tanks. Considering that many hundreds or thousands of people who saved Apollo 13 went unnamed in history, and considering that the majority of the Mission Ops report spends about 90-95% of its text discussing problems, anomalies, recommendations for change, etc., this is high praise indeed.
And as well it should have been: He gave recommendations to power down, advised on whether the voltage current could hack the loads during troubleshooting, and he made the call (which John Aaron passed up) to turn on battery A when fuel cell 2 finally bit the dust. Even after this was done, he kept track of the battery usage, which would become essential later when the procedure was created to charge the CSM batteries from the LM.