Unfortunately, no, there aren't any other eevees in Pokemon FR/LG, but wait until after you beat the elite four - On Four Island, you can breed your eevee (or any of it's evolutions) with a ditto, and you'll have plenty of eevees.
Yes, you get an Eevee in Celadon City, and you can buy a Water Stone to evolve Eevee in the Celadon City Poke Mart.
The only available Eevee in the game is at the top of Celadon Mansion in Celadon City. Eevees cannot be found at the Game Corner, Safari Zone or elsewhere in the game. You can, however, get multiple Eevees if you trade them in from another game.
its not a jolteon when u get it. its an eevee. use the thunderstone to make it a jolteon. the eevee is in a house in celadon city
You can find eevee in Celadon City in Kanto as a Game Corner prize.
You get it in Celadon city go around the beginning of celadon city at the back of this big building you get a lvl 25 Eevee
Top of the big building in Celadon City
To get Eevee in HG/SS in Johto, get it from Bill in Godenrod City. In Kanto, you can buy an Eevee in Celadon GC for 3,333 coins.
You must evolve the Eevee you get from Celadon City with a Waterstone.
You can't actually catch it. You go to Celadon City. There is a door behind the Celadon Mansion where you got the tea from the old lady. Go up the stairs and there will be a room. there is a PokeBall. It is a Eevee.
It is given to you by someone at the top of the Mansion in the northern part of Celadon City.
Celadon city mansion back entrance, then go to the top floor
Eevee can be found on the roof of the Pokemon Mansion in Celadon City. You have to go around and use the back entrance, though, to get to the room where you find it.