For a long time they were a stumbling-block to me until I remembered a very significant fact: that she and Alfred Inglethorp were cousins. 
I recalled that she and Alfred Inglethorp were cousins.
mnli hypothesis: I recalled that she and Alfred Inglethorp were cousins. premise: For a long time they were a stumbling-block to me until I remembered a very significant fact: that she and Alfred Inglethorp were cousins. 