Helmet-Silver Peak Mine - Can be found in the north west corner, on the upper level. Clearing the cache (restart the game and hold both bumpers and the X button on Xbox or the equivalent on other platforms until 'press start' is displayed) will also fix the problem, but it will cause several deathclaws to spawn as well. Waiting some hours (a safe distance away and returning) can reload the map cell allowing the bodies (and the deathclaws) to appear. Occasionally the bodies may not be present. The other corpse is wearing non-faction T-51b power armor. The armor is located in the southeast corner of the area, at the bottom of the hill in some brush, on one of two armor clad dead prospectors found laying near one another. There is an extremely large and dangerous concentration of deathclaws at the location, so caution is advised.
Body-Deathclaw promontory - Can be found in the unmarked location, which is found across the river due east of Cliffside Prospector Camp (only the armor, no helmet).