[1] He is noted for his handbook of Greek and Latin palaeography and for his study of William Shakespeare's handwriting in the manuscript of the play Sir Thomas More.

[6] In 1916, he published his palaeographic study of the three-page addition to the manuscript of Sir Thomas More, arguing that the three pages in "Hand D" were in Shakespeare's autograph.

In 1923, he contributed to the definitive study Shakespeare's Hand in the Play of Sir Thomas More, with Alfred W. Pollard, W. W. Greg, John Dover Wilson, and R. W. Chambers.

At Maunde Thompson's request, the portrait of him painted in 1909 by Edward John Poynter was transferred to the British Museum.

The Acquisition Notes of 13 May 1917 stating: "You will remember that it was understood that my portrait was eventually to return to the Museum, to have the honour of hanging among those of greater men.