{blaylock2000} \bibitem[Blaylock et al.(2000)]{blaylock2000} Blaylock, M., Branch, D., Casebeer, D., Milliard, J., Baron, E., Richardson, D., \&~ Acheta, C. 2000, PASP, 112, 1439 % % ADS Reference % Mount Wilson and Palomar Photographic Supernova Spectra % This includes SN 1954A Ib. {branch1972} \bibitem[Branch(1972)]{branch1972} Branch, D. 1972, A\&A, 16, 247 % % ADS reference % The spectrum of the type I supernova of 1954 in NGC 4214. % David confirms He I lines in SN 1954A Ib. % McLaughlin identified them in 1963. {casebeer2000} \bibitem[Casebeer et al.(2000)]{casebeer2000} Casebeer, D., Branch, D., Blaylock, M., Milliard, J., Baron, E., Richardson, D., \&~ Acheta, C. 2000, PASP, 112, 1433 % % ADS Reference % Lick Observatory Photographic Supernova Spectra % This includes SN 1954A Ib with pg maximum estimated as 1954_04_19. {mclaughlin1963} \bibitem[McLaughlin(1963)]{mclaughlin1963} McLaughlin, D. B. 1963, PASP, 75, 133 % % ADS reference % The spectrum of the type I supernova of 1954 in NGC 4214. % McLaughlin identified them in 1963. % This is Dean B. McLaughlin: a much older namesake of % unrelated astronomer Dean E. McLaughlin.