In 1848, Robert joined a group of miners to Australia to find gold. Robert's time in Australia is unknown, but he ended his time in California where he heard Apostle George Q. Cannon from the Church of Jesus Christ of Latter-day Saints preaching. Robert became convinced of its truth and was baptized by Elder Cannon. Robert was not the only one in his family who joined the Church, as his older brother Archibald was baptized in 1841.
He made his way to Draper, Utah, and became employed by Bishop Joseph S. Rawlins. Robert became acquainted with Joseph's daughter Nancy Jane Rawlins, and the two were married on Jan 1, 1860 in Draper, Utah. The same year, the Kerr family moved to Richmond.