I learned today that Professor Marleau passed away in 2021. I took a couple of courses from him. If I remember correctly, the first was ECE 331 State Space Systems Analysis. It was hard. Then, the next summer, in 1972, I did an independent study course with him working on very rudimentary computer graphics software. (Mostly, it was so slow that it made a really good case for the need for a separate graphics processor, the VT11 and the GT40 system.)
Many years later, while I and Hannes Beinert were acquiring computers for my collection, I learned through UW Surplus that Professor Marleau was decommissioning a large amount of DEC PDP-11 minicomputer equipment to make way for a new generation of equipment based on Unix workstations. He graciously arranged, through UW Surplus, for the entire set of equipment, manuals, tapes and disks to come into my possession, where the equipment still remains. Recently, I started the process of scanning in the documentation, and making it available on my Google drive and hopefully, should they see fit, on the bitsavers.org website.
More information on Professor Marleau can be found at the ECE Emeritus page in his honor (which also includes a link to his obituary.)