In 2354, shortly after the loss of her husband, Dr. Beverly Crusher was offered the position of chief medical officer aboard the Hammarskjöld. She declined, as it would have meant leaving behind her young son, Wesley. (TNG novel: Losing the Peace) By 2376, the Hammarskjöld was under the command of Captain Conley, and assigned to the Federation Diplomatic Corps. In that year, they were dispatched to the planet Mariposa, to help deal with the civil discord there. (SCE eBook: Out of the Cocoon)