on july 28, young established a location for the future salt lake temple and presented a city plan to the larger group for their approval. in august 1847, young and other selected members of the vanguard company returned to winter quarters. by december 1847, more than two thousand mormons had completed the journey to the salt lake valley. several hundred, including young, returned east to gather and organize the companies scheduled for following years. demographic estimates place 1,611 pioneers in the valley of the great salt lake during the winter of 1847. the adult labor force, however, was quite small as a high percentage of the group, 53.2 percent were under the age of nineteen. twenty five percent of the total were children under the age of eight.