Complex sentence: It was during this trip, while waiting for a train at the Gare de Lyon that Hadley misplaced and lost a suitcase filled with Hemingway's manuscripts; devastated and angry at the loss of his work, he blamed her.
Split into simpler sentences: It was during this trip, while waiting for a train at the Gare de Lyon, that Hadley misplaced and lost a suitcase filled with Hemingway's manuscripts. Devastated and angry at the loss of his work, he blamed her.