no, explorers do not find pumpkins. never have.
grim reaper is the same as the battle hardened. (master gen is same thing, word used on other servers)
everyone lvl 19 and over kills 5 stone golems.
...lvl 19-26 continue to get stone to end of event
lvl 27-50 then get 5 greater golem
...lvl 27-36 continue to get greater to end of event
lvl 37-50 then get ancient golem thru end of event
reward for killing golems is various amounts of pumpkins, depending on difficulty/type of golem
here's an excellent guide in case u missed it
http://forum.thesettlersonline.com/t...o-Event-Guides