So wait, if each Pokemon owned, including past evos and event Pokemon, I beleive I have earnt an Eevee?
Spoiler:

Torchic
Mudkip
Combusken
Marshtomp
Ralts
Kirlia
Poochyena
Mightyena
Shroomish
Breloom
Wingull
Pelliper
Charmander
Charmeleon
Taillow
Swellow
Zubat
Golbat
Aron
Lairon
Scyther
Seedot
Nuzleaf
Slakoth
Whismur

I beleive that is 25 with ones I haven't counted yet!