St. Helen's Episcopal Church Dayton Ave. and 1st St. SW Wadena. 218-631-3928 Sunday Worship 10 a.m. St. Helen's THECOMESad CANCHIS with Rev. Del Moen St. Helens Episcopal Church was built in 1896. It is the oldest permanent church building in use in Wadena today. St. Helen's Episcopal Church Dayton Ave. and 1st St. SW Wadena . 218-631-3928 Sunday Worship 10 a.m. St. Helen's THECOMESad CANCHIS with Rev. Del Moen St. Helens Episcopal Church was built in 1896. It is the oldest permanent church building in use in Wadena today .