. ▁At ▁K osh kon ong , ▁Diet rich son ▁left ▁in ▁his ▁parish ▁journ als ▁and ▁church ▁records ▁of ▁parish ▁membership ▁and ▁minister ial ▁acts , ▁an ▁important ▁written ▁legacy . ▁ ▁Diet rich son ▁experienced ▁a ▁cl ash ▁of ▁interest ▁with ▁Luther an ▁la ity ▁leader ▁Ell ing ▁E iel sen . ▁Although ▁se eds ▁of ▁controvers y ▁were ▁s own ▁when ▁Diet rich son ▁question ed ▁the ▁valid ity ▁of ▁cl erg ymen ▁who ▁had ▁been ▁ord ained ▁in ▁America , ▁he ▁laid ▁a ▁strong ▁foundation ▁for ▁Norwegian ▁Luther an ism ▁in ▁the ▁United ▁States ▁and ▁encourag ed ▁other ▁Luther an ▁cl erg ymen ▁from ▁Norway ▁to ▁migr ate ▁to ▁this ▁country . ▁ ▁Diet rich son ▁returned ▁to ▁Norway ▁in ▁ 1 8 5 0 ▁where ▁he ▁subsequently ▁held ▁two ▁past or ates . ▁He ▁was ▁station ed ▁in ▁Ned str and ▁from ▁ 1 8 5 0 ▁to ▁ 1 8 6 2 ▁and ▁ Ø stre ▁Mol and ▁from ▁ 1 8 6 2 ▁to ▁ 1 8 7 6 . ▁This ▁entire ▁period ▁was ▁marked ▁by ▁disag re ements ▁with ▁local ▁parish ion ers . ▁He ▁then ▁served ▁as ▁post master ▁at ▁P ors grund ▁from ▁ 1 8 7 6 ▁until ▁ 1 8 8 2 . ▁He ▁was ▁the ▁author ▁of ▁Tra vel s ▁among ▁the ▁Norwegian ▁Em igr ants ▁in ▁The ▁United ▁North ▁American ▁Free ▁States ▁( N or weg ian : ▁Re ise ▁bland t ▁de ▁n ors ke ▁em ig ran