The part of a one-electron coefficient of fractional parentage (cfp) depending, for the atomiclshell, on the spinS, seniority υ, and electron numbernof the daughter state, is factored into two parts, the first with dependence onnand υ, and the second with dependence on υ andS. Various techniques are used to extend these results to the two-electron cfp. These entail deriving analogues of the 6-jsymbols for the symplectic group Sp(4l+ 2) and the special orthogonal group SO(2l+ 1). Explicit algebraic expressions are provided, and the choice of multiplicity indices and their circumvention are discussed.