Jay Garrick

Early Life (1952-1970)
Jay was born in smallville to an unnamed mother and Hermes (Yes the Greek god, I know). Jay always had super speed and at age fourteen was picked up by A.R.G.U.S and monitored ever since. At age 18 Jay was offered the opportunity to become both a celebrity and a super hero having grown up reading about Quick silver (yes the silver haired guy in Marvel comics) and so decided to take A.R.G.U.S up on thier offer.

J.S.A (1970-2000)
Jay served as a long term member of the J.S.A and he began aging slowly this was explained as part of heritage from Hermes. During his stint as part of the J.S.A Jay met reverse-flash who claimed to be inspired by another Flash of the future. Both Jay and this Reverse Flash had a minor fight before reverse-Flash headed of into the future (presumably) however Reverse-Flash talked of the speed force Jay spent the rest of his life looking I to the speed force. When the J.S.A where forced to disband Jay resisted and Jay had both his legs broken and was sent to prison since 1990 to 2000.

Retirement (2000-2020)
When Jay got out of prison he moved to smallville in Kansas and hid from society, he trained Clark Kent on how to use his power's as a cynical old man. When Barry Alan came to recruit Jay he didn't care until Barry mentioned Reverse flash Jay was interested and trained Barry. Jay was almost disintegrated by heat wave but Jay had an adrenaline rush which allowed Jay to enter the speed force.