We present results of strong coupling calculations of the superconducting properties of the alloy ${\mathrm{Pb}}_{0.9}$${\mathrm{Bi}}_{0.1}$. The kernels in the Eliashberg equations are taken from quasiparticle-tunneling data which has been inverted by Dynes according to the method of McMillan and Rowell. The finite-temperature gap equations are solved by successive iteration to obtain solutions at several temperatures. The solutions are then employed to calculate select thermodynamic properties of ${\mathrm{Pb}}_{0.9}$${\mathrm{Bi}}_{0.1}$.