Unknown Builder
1899

From oldchesterpa.com:
"The considerably-improved financial situation was finally reflected in the installation on Christmas eve, 1899, of a fine pipe organ with $1,150 raised by subscription. The second-hand organ we had had for seventeen years was sent to the Washington Memorial Chapel at Valley Forge."

"Basic structural changes in the church building were now necessary. Because the chancel was small and circular in shape, the choir stalls had to be relocated in the nave. This, however, made the seating capacity insufficient and plans for enlargement were drawn up in 1901 by George Nattress and Sons, Architects of Philadelphia. The changes made included the enlargement of the chancel and the addition of the transepts and cross aisle, as well as a new organ chamber and sacristy. Also, many repairs were made to the old building and tower, and the Ascension Memorial Window was installed above the Altar. The flooring was also renovated with a mosaic floor in the chancel and sanctuary and a maple one in the nave. Other work was performed on the windows, and new pews were provided to fill the nave when the new choir stalls were put in the chancel. The organ was moved from one side into its new chamber on the other side of the chancel. A new reredos and chest of drawers for the sacristy were provided, and the pulpit and lectern were installed in their current positions. Thus, the physical layout of the church as we know it was born."