abstract:Lindley Johnson (January 18, 1854 - February 27, 1937) was a noted Philadelphia Architect. Johnson was born in the Germantown neighborhood of Philadelphia, Pennsylvania, and attended Germantown Academy before graduating from the University of Pennsylvania in 1875.
LindleyJohnson, head of the near-Earthobjectprogramat NASAheadquartersinWashington, D.C., saysan asteroid the sizeofafootball fieldcouldwipe out a majorcity.