Mary met Laplace, Poisson, Poinsot, Emile Mathieu and many others. Returning to London, Mary and William lived in central London which enabled them to continue close contact with their many scientific friends.
Mary matugunan Laplace, Poisson, Poinsot, Emile Mathieu at maraming iba pa. Pagbabalik sa London, Mary at William nanirahan sa central London na-enable ang mga ito upang magpatuloy close makipag-ugnayan sa kani-kanilang mga pang-agham maraming mga kaibigan.