Fuel pump quit...help

[69BUCKET]

5.3/th350 in a '69....put little over 100 miles on it with no issues and love the way it ran.

Went to start it to show my brother, fired right up, as usual....then just shut down. Tried to fire it up, but pump didn't buzz to prime system like usual. In line fuse for pump is good, 4 30a fuses for system are good. What i did notice was one relay isn't getting switch on power. I jumped power to the switch on power for that relay hoping it was bad, but no buzzing from fuel pump. Tried a new relay, still no switch on power.

Any ideas on what to try next? The relay does have constant power...but no switch power. Even when jumped, no buzzing from pump. Need some help.