October 1845. Frank Wills, who had followed Medley to Canada, supervised the work on the cathedral. He also designed and oversaw the building of St. Anne's Chapel of Ease, which Medley had built in order to hold services while the cathedral was under construction. St. Anne's Chapel of ease was Constructed in eight months between 1846 and 1847. The cathedral's nave and aisle walls were completed by the end of 1847, but further work was delayed by lack of funds. Bishop Medley returned to England for several months in 1848 to raise more money and to consult with the Ecclesiological Society about how to proceed, since Frank Wills had left Fredericton in early 1848 to set up an architectural practice in New York City. On the recommendation of the Ecclesiological Society, the British architect William Butterfield designed a choir and tower, and Medley succeeded in raising a further £2,000. The choir and tower were completed in 1849, Medley having changed Butterfield's design to make the choir longer and the tower higher. In 1851 Medley visited the United States and England, raising more funds and receiving donations of cathedral furnishings. Medley himself designed the cathedral's spire, which was erected in 1851. It was a simple broach spire built of wood and covered in zinc. Medley intended the tower to be tall but because of doubts about the strength of the cathedral's foundation it was built shorter. The clock in the cathedral is an exact copy of Big Ben in London. The clock dial is in the cathedral above the choir. It measures four feet in diameter. The literal clock mechanism is just above, in the tower. It was designed by Dent of London, UK and was built in 1853, later being installed in 1854. The clock still needs to be hand wound. It is currently wound by three different people on a monthly basis. The weights that drive the clock measure approximately 454 kg or 1,000 lbs and 136 kg or 300 lbs separately. A narrow spiral staircase of 51 steps must be climbed to access the room housing the clock and bell mechanisms. Then a very narrow wooden latter must be climbed to reach the 15 bells. The hour strike of the clock no longer rings. It was stopped in 2007 due to noise complaints from neighbours. However, the chimes still ring the Westminster chime to mark the quarter hours.