In the medley version with "Summertime", she sang "Sometimes I feel like a montherless child" (on Mahalia Jackson Vol. 2, Columbia/Legacy, and The Best of Mahalia Jackson, Legacy/Columbia). The Harmonizing Four version ("Motherless Child") is interesting (on Jubilation, vol. 2, and I Shall Not Be Moved), with the bass is the lead.
~Masato