I remember some other speedsters from the comics along with Barry and Jay Garrick: first, Johnny Quick. Obviously Dr Well's daughter is named after his daughter, Jessie Quick. Maybe Dr Well's daughter will become a speedster. Second, Wally West.Obviously Iris' brother daughter is named after him (In the Silver Age comics Wally was her nephew) Maybe he'll become a speedster too. Third, Don and Dawn, the twin children of Barry and Iris in the future, the Tornado Twins. I had to go to Wikipedia here to remember the storylines: "In the multiversal variant known as Earth-247, each of the twins themselves have children with speed-based abilities. One, Jenni Ognats, grows up to become the Legionnaire XS, while the other, Bart Allen, is born with an accelerated metabolism that rapidly ages him, and is sent back to the 20th century where he is cured by Wally West. He remains there as the superhero Impulse under the tutelage of Max Mercury, and later becomes the second Kid Flash as a member of the Teen Titans." Max Mercury was also known as Quicksilver, but I didn't remember very much about him other than his tutorage of Impulse.
