A vestry and organ-chamber 15 ft. square, the gift (together with a new organ) of Lady Penrhyn and designed by E. Swinfen Harris, were added in 1878. (fn. 436) In the same period Lady Penrhyn also gave a reredos, designed by Harris, in memory of H. J. Barton, whose widow presented a corona for the chancel in 1875. The north window of the nave was filled with stained glass (again designed by Harris) in memory of Edward Mordaunt Cadogan, the son of Barton's successor Edward Cadogan, and in 1890 a screen on the east side of the tower and a window on the north side, both by Harris, were presented by the Dowager Lady Penrhyn in memory of her husband. (fn. 437) The rector's wife gave a new altar frontal the same year, which was said to contain old French lace from Laon buried at the time of the Revolution. (fn. 438)
In 1896-7 the 2nd Lord Penrhyn met the entire cost (£2,000) of a thorough restoration and enlargement of the church in memory of his wife, who died in 1869, to the design of Matthew Holding. The chancel, shortened in 1758, was extended one bay to the east, and a south transept added, opening out of the chancel and south aisle. A new boiler-room was added at the west end of the north aisle and new heating apparatus installed. The nave and aisles were refloored in rubbed stone, with oak under the seats, and the chancel in polished Hoptonwood stone, intermixed with marble and tiles. The nave, aisle and transept were reseated with open seats of wainscot oak; new prayer desks and choirstalls were installed, and a new pulpit, the upper part in oak, the base and steps in Hoptonwood stone. New wrought-iron altar rails were also added. (fn. 439)
Stained glass by Eleanor Brickdale was inserted into the north window of the chancel in 1921. (fn. 440)
The church contains a monument to Charles Hosier and his wife by Sir Henry Cheere, erected in 1758, and others to their daughter, Anna Maria Sharp (d. 1747), her father-in-law John Sharp (d. 1726), and her son John Hosier Sharp (d. 1734), as well as Elizabeth Sharp (d. 181