I would like to know how one would pronounce the name "Strzyzewski", which I believe is Polish. From a chart of the Polish alphabet I gathered that it may be something like "Strzhezhevski". Is this correct, and if so, where does the accent lie? Thank you,
Yes, the surname is Polish indeed. The pronounciation you came up with is more or less correct. I'd say Stshishevsky. And the accent - as in most Polish words - is on the second last syllable, thus: StshiSHEVsky.
The real spelling of that surname is Strzyżewski (with ż not z as you wrote). The digraph "rz" is pronounced as ż. In my opinion you can not say that "r" sound is lost or omitted because "rz" needs to be considered as a whole - digraph (the same with cz, ch, dz, dź, dż).