[6] In 1886, a football field was built at the back of the school by the senior Form IV under the direction of William Rathwell, the principal.

[5] During WWII, many students who lived beyond a reasonable walking distance couldn't attend school unless their families could afford logging during the week.

The first of these in 1959 (at a cost of $700.00), adding sixteen classrooms and a contemporary gymnasium, a cafeteria, kitchen, a large 662-seat auditorium, projection room and a foyer.

[5] In 1977, PDCI competed on Reach for the Top (a CBC academic quiz show), and won against Smiths Falls 235–130.

[9] In Summer 2014, 10 classrooms on the second floor were designated for Grade 7/8 students who would be joining the school that Fall, and Gym 3 was also retrofitted for them as well.

[10][11] In Summer 2015, an elevator was installed, helping the school meet more of the accessibility standards, and the new main entrance was made more noticeable.

[12][13] In Summer 2017, all the exterior doors and windows were replaced, as well as the front steps/wheelchair ramp, and new signage for the two main entrances.

Some include (but are not limited to) Football, Basketball, Soccer, Volleyball, Track & Field, Badminton, Snowboarding, Golf, Tennis, and Cross-Country.

In 2016 (coinciding with the town of Perth's bi-centennial celebrations), PDCI held a school reunion (dubbed "Raisin' the Devil"), commemorating 140 years of education.

[16] PDCI's Media Arts class deals with video productions which follow Blue Devils School Sports and Events through Facebook's live feature, on their designated page.

The first broadcast was of a Senior Girls volleyball game between PDCI Blue Devils and SFDCI Redhawks on Thursday, 14 December 2017.