According to Duran the village had 40 houses, which would mean 360 persons without reckoning possible subsidiary rancherias. The name is mentioned for only one mission, San Jose, at which 428 Ochejamne, or Oocheganes, were baptized between 1829 and 1836. This is prima facie evidence that Duran, who saw them in 1817, was referring, as he implies, only to one rancheria and that the tribe was actually larger. This idea is supported by the account of José Berreyesa in 1830 of severe Indian fighting in the delta (Berryesa, MS, 1830). The Ochejamnes and the Yunisumnes with certain American trappers were arrayed against the Californians, who had gathered together 450 auxiliary fighters from the Cosumnes and other tribes. No value is placed upon the number of Ochejamnes but it must have been considerable. It was probably as a result of this campaign that 428 members of the tribe were baptized at Mission San Jose. Even with a relatively complete conquest many of the natives must have escaped; hence in 1830 their total number must have reached 500. But this was in 1830, after a generation of expeditions and petty warfare. The aboriginal number must have been considerably greater, let us say 750. (Ochejamnes ... 750) ____________________ _Guaypem._--This group is thought by Schenck to have been simply a village but Merriam (1907, p. 350) regards them as a tribe called the Wipa, located on Sherman Island near the Sacramento River estuary. Duran in his diary says that Guaypens is 6 leagues south and southeast of the fork of the river below Courtland. Allowing for his usual exaggeration of distances, this puts the rancheria near the mouth of the Mokelumne, in the vicinity of Walnut Grove. He speaks of _the_ rancheria "de los Guaypens" and saw only a few people. Thus neither size nor locality supports the contention that Guaypem was synonymous with Wipa. The tribe was not converted until relatively late, 41 converts being taken to San Jose between 1821 and 1824. By that time the tribe had been subject to severe attrition. Thus the evidence points to an aboriginal group consisting of one village of average size, or close to 300 inhabitants. (Guaypem ... 300) _________________