After the death of her first husband, Seymour Chapin Davison, in 1897 she became, under the sponsorship of Ambrose Bierce, a staff illustrator of portrait sketches at The San Francisco Examiner.
In September 1910 she gave birth to a son, Colin Chambers, and the following year divorced her husband for his infidelities with the Mexican writer Maria Cristina Mena.
She traveled to London and Paris, where she interviewed Pablo Picasso and Rostand, John Galsworthy, George Moore, Émile Zola, Bret Harte (who happened to be in England), Lady Sackville-West, and many others.
[4] Mary Williams noted that she was impressed with `Abdu'l-Bahá's generosity of spirit in bringing people of social standing to the Bowery as well as that he then gave money to the poor rather than accepting it.
[8][9] Beginning in the early 1920s, when a severe wrist injury temporarily limited her career, the Reeds resided primarily at Guernsey in the Channel Islands or in France.
Mary Williams returned to Monterey in the spring of 1943, purchased the former home of the painter Lucy Valentine Pierce, and devoted herself to seascapes and landscapes.