Evidence from genealogical and church ordinance records proves that the Asay family traveled to Utah in 1860. A child was born in March 1860 in New Jersey. The first documentation to place them in Utah is a church ordinance performed in April 1861, which was prior to the arrival of that season's emigration. Further research is needed to determine the name of the company they traveled with.
William's date of birth comes from Sixth Ward rebaptism records.