Where do I find pokedex numbers:59,65,108,111,115,134,135,139,146,147 and..

#59: Cherrim: A trainer on route 221
#65: Drifloon: At Valley Windworks on a Friday
#108: Spiritomb: Cynthia
#111: Garchomp: Cynthia
#115: Riolu: Egg from Riley on iron island
#134: Finneon: Fishing on route 205(good rod)
#135: Lumineon: Trainer on route 223
#139: Milotic: Cynthia
#146- 148: Uxie, Mesprit, Azelf: 3 lakes after spear pillar (lakes Valor, Acuity, & Verity)

#59- Cherrim-evolve form of churubi. Area Unknown
#65- Drifloon- Lower evolve form of Drifblim. Area Unknown
#108- Spiritomb- Able to be seen in the Elite four by the champion. Area Unkown
#111- Garachomp- Highest evolve form of Gible. Extremely Powerful. Gible can be found in a secret area in Mt. Cornet. Garachomps area is unknown
#115- Riolu- Lower evolve form of Lucario. Available on Iron Island. A man gives to you after going through the cave with him.
#134+#135- Finneon- Lower Evolve form of Luminion (#135 unavailible other than raising a Finneon) Finneons are common on fishing areas along the west coast of Sinnoh
#139- Milotic- Higher evolve form of feebas. Feebas is available in Mt. Cornet. Milotics Area is Unknown
#146+#147+#148- Azelf, Mesprit, Uxie- Three beings of the sinnoh lakes. Beings of knowledge, willpower and love. After certain procedures have been done, they may be found in the middle of all three of sinnohs great lakes

Is this detailed enough for you?:]

You can also see Drifloon from fighting a trainer in the Hearthome Gym. If you already beat it, though, you'll have to wait 'til Friday.

#59. Cherrim: an ace trainer on Route 221 has it.
#65. Drifloon: by now, it can only found in front of the Valley Windworks on Fridays.
#108. Spiritomb: Cynthia, the E4 champion, has it.
#111. Garchomp: [refer to Spiritomb.]
#115. Riolu: hatched from the egg Riley gives you in Iron Mountain.
#134. Finneon: swimmers on Route 223 have some.
#135. Lumineon: swimmers on Route 223 would have some.
#146-148. Uxie, Mesprit, Azelf: once you've battled Dialga on the top of Mt. Coronet, they can be found in the 3 lakes of Sinnoh. Mesprit will run off into the wild grasses of Sinnoh, but at least his picture is recorded in the Pokedex.

You can also see Cherrim with a trainer in iron island