Lewis A. Swift
Lewis A . Swift ( February 29 , 1820 – January 5 , 1913 ) was an American astronomer who discovered 13 comets and 1 , 248 previously uncatalogued nebulae . 
<triplet> Lewis A. Swift <subj> February 29, 1820 <obj> date of birth <subj> January 5, 1913 <obj> date of death