The linear correlations between ground state gyromagnetic ratios and supera
llowed beta -decay transition strengths of mirror nuclei are reexamined in
the light of more extensive experimental data. Predictions are made for the
las yet unmeasured! ground state magnetic moments of 11 nuclei in the mass
range 45 less than or equal toA less than or equal to 59, using shell mode
l calculations to resolve sign ambiguities. The linear correlations are ten
tatively extended to superallowed decays between excited states of mirror n
uclei.