Cases 23 and 24 are apparently the same object viewed at different or overlapping times on its trajectory.  Case 23 is truck driver Herman Wilcox at about 6 PM (actually 5:57) from near Grants, NM, and Case 24 is UNM Prof. Marvin May at 5:57 PM from Albuquerque (who with his training in meteorite tracking with LaPaz has the more accurate time than the truck driver).  There were also about 100 guards at Sandia Base including the Officer of the Guard, sighting it at 5:59-6:06 PM evidently.

Feb. 17, 1949.  Near Grants (at 35° 7' ±2' N, 107°47' ±2' W), Sandia Base, and near Albuquerque (at 35° 5' N, 106° 35' W), New Mexico.  5:57-6:06 p.m.  Green Oil Co. truck driver Herman Wilcox, at Chief's Rancho stop on Hwy 66, saw oval luminous white light with faint trail of white smoke in the SW at about 225° azimuth moving S in vertical climb then leveled off, then a gradual ascent, disappearing suddenly after several secs, no clouds in the sky to obscure it.  (BB Maxwell Microfilm Roll 5, pp. 546-557, NARA Microfilm Roll 88, p. 401, Roll 91, p. 412;  FOIA;  Saunders/FUFOR Index) 9 mins 100+ 1 UNM Civil Engr Prof / meteorite tracker (LaPaz assoc.)