Not possible.
You're in the Kanto region in LeafGreen and FireRed.
Ham Seok-heon was born in 1901.
Ham Seok-heon died in 1989.
Lim Heon-yong was born in 1941.
Kim Eung-heon was born in 1927.
Kim Eung-heon died in 2007.
Choe Chung-heon was born in 1149.
Choe Chung-heon died in 1219.
Kim Do-Heon was born on 1982-07-14.
Park Chang-Heon was born on 1985-12-12.
Hong Sung-Heon was born on 1977-02-28.
Jeong Jae Heon was born on 1975-04-18.