[2][3] Clarke also served as a volunteer professor of business at Southern Virginia University and was involved with Ascend Humanitarian Alliance in beginning microcredit operations in Bolivia.

[4] Clark also served as an advisor on finances to Rodney K. Smith, president of Southern Virginia University.

[5] Clarke became an LDS Church general authority and member of the Second Quorum of the Seventy in 2006.

[6] Clarke served first as a counselor and then, from 2007 to 2011, as president of the church's Central America Area.

[citation needed] Clarke and his wife, Mary Ann Jackson, were married in 1970 and they are the parents of six children.