To begin, go to the Seventh-day Adventist Obituary Index (https://libguides.andrews.edu/SDAPI/OBI) and perform a search for your person of interest. Note the publication information for any resulting obituary, and then visit the online archives site to access the periodical (https://documents.adventistarchives.org/Periodicals).
A general search can also be done for the name in the online archives. If the individual you are looking for was in denominational employ, searching for their name in the historic Adventist Yearbooks (which you can access at https://documents.adventistarchives.org/Yearbooks) should yield results for that person’s respective years of employment. See “How do I do a search on your online archives?” if you do not know how to complete a general search in the online archives.