You can search all senior projects submitted to the library on the library catalog: onesearch.calpoly.edu
Many of the students you are researching may have submitted a senior project. This is useful for several reasons, including:
Tips for searching for International students in senior projects:
Senior projects are all cataloged in the library's catalog.
Senior projects are ONLY searchable by author name, author's department, and title. There are no subject headings, keywords, abstracts, or full-text searching of pre-2009 senior projects.
How to limit your search to just senior projects
Use the Advanced Search
Change "Any Field" to "Local Collections" and type "senior project"

Accessing Senior Project in print
Senior projects are located on the second floor of the Kennedy Library, adjacent to the microfilm readers near the Research Help Desk.
Senior Projects created before 2009 are only on Microfiche.
From the catalog record for the senior project you'll need the Number that looks like XX-XXXX to find the project.

Find the senior project cabinets on the 2nd floor (northwest corner)
Locate the drawer that includes the senior project with the number you identified
Each senior project has 1-2 microfilm pages to pull.
Use the microfilm readers adjacent to the senior projects to read the microfilmed pages.