▁people ▁who ▁lived ▁in ▁what ▁is ▁now ▁part ▁of ▁the ▁Mexican ▁state ▁of ▁Nue vo ▁Leon ▁and ▁the ▁U . S . ▁state ▁of ▁Texas ▁from ▁at ▁least ▁the ▁ 1 6 th ▁century ▁in ▁the ▁ 1 8 th ▁century . ▁ ▁In ▁the ▁late ▁ 1 5 8 0 s ▁or ▁maybe ▁slightly ▁earlier ▁the ▁pressure ▁of ▁the ▁Spanish ▁inc urs ion ▁caused ▁the ▁Sim oni ▁to ▁migr ate ▁north ▁of ▁the ▁Rio ▁Grande ▁and ▁join ▁forces ▁with ▁the ▁Y oj u ane ▁as ▁part ▁of ▁the ▁greater ▁J um ano ▁league . ▁ ▁By ▁ 1 7 0 9 ▁the ▁Sim ono ▁were ▁living ▁in ▁eastern ▁Texas ▁along ▁the ▁Rio ▁Bra zos ▁in ▁an ▁area ▁known ▁as ▁the ▁Ran cher ia ▁Grande . ▁In ▁that ▁year ▁a ▁hunting ▁party ▁of ▁Sim oni ▁as ▁well ▁as ▁Y oj u ane ▁and ▁T us on ib i ▁encountered ▁the ▁expedition ▁of ▁Is id ro ▁de ▁Esp in osa ▁and ▁tried ▁un success fully ▁to ▁get ▁him ▁and ▁his ▁associ ates ▁to ▁come ▁to ▁the ▁Ran cher ia ▁Grande ▁and ▁meet ▁with ▁the ▁rest ▁of ▁their ▁families . ▁ ▁By ▁the ▁ 1 7 4 0 s ▁when ▁most ▁of ▁the ▁Y oj u ane ▁moved ▁to ▁the ▁San ▁Gabriel ▁River ▁miss ions ▁the ▁Sim oni ▁seem ▁to ▁have ▁lost ▁their ▁separate ▁identity ▁and ▁become ▁sub sum ed ▁within ▁the ▁Y oj u ane ▁people . ▁ ▁References ▁ ▁Anderson , ▁Gary ▁Clay ton . ▁The ▁Indian ▁South west . ▁Norman : ▁University