Table: election_results_1954_4
Columns: district
incumbent
party
first_elected
result
candidates

Question: Name the party for the pennsylvania 25
SQL: SELECT "party" FROM election_results_1954_4 WHERE "district" = 'Pennsylvania 25'

Question: Name the minumim first elected for alvin bush
SQL: SELECT MIN("first_elected") FROM election_results_1954_4 WHERE "incumbent" = 'Alvin Bush'

Question: What is the incumbent for pennsylvania 15
SQL: SELECT "incumbent" FROM election_results_1954_4 WHERE "district" = 'Pennsylvania 15'