One of his many prominent friends was Charles Dickens, to whose periodical, All the Year Round, he contributed several articles on American affairs.
Towle became president of the Papyrus club in 1880, and was a delegate to the Republican national convention at Chicago in 1888.
He was managing editor of the Boston Commercial Bulletin in 1870–71, and foreign editor of the Boston Post in 1871–76, and became a contributor to many foreign and American periodicals and took an active part in the literary life publishing over 50 books and articles and giving public lectures on topics of the day.
In early 1873 Towle started collaborating with the American publisher James R. Osgood on translations of Verne.
Towle died in Brookline after a long illness culminating in paralysis of the brain, and was buried in Mount Auburn Cemetery.