SH0102's post in Runner misses home and 2nd runner touches home prior to lead runner being tagged out.... was marked as the answer
No, a runner who misses home but has passed home has acquired the base , but is subject to appeal (can not retouch once following runner has scored)
The second runner to cross would still count after appeal unless the appealed missed plate is the third out
SH0102's post in Base running was marked as the answer
Yes, the runner on first is forced to advance unless a batter whose name follows his in the lineup is put out first (which could only be the batter in this case)
Because the runner was touched first, he is out, and then the batter is out when the base is touched before he acquires first .
Had he stepped on the bag first, the force on R1 is removed and he is not out if standing on the bag