Elastic-neutron-scattering measurements on the singlet-ground-state ferromagnets fcc Pr and ${\mathrm{Pr}}_{3}$ Tl are reported. Both exhibit magnetic phase transitions, possibly to a simple ferromagnetic state at 20 and 11.6 \ifmmode^\circ\else\textdegree\fi{}K, respectively. The transitions appear to be of second order although that in fcc Pr is clearly anomalous. Additional information on the inelastic scattering studies of the ${\ensuremath{\Gamma}}_{1}\ensuremath{-}{\ensuremath{\Gamma}}_{4}$ excitons in these systems is presented. dhcp Pr is also briefly discussed.