Your profile indicates that you've done a mtDNA test. That could help you connect with people who are related on your maternal-only line, but not with other relatives and ancestors. (For example, it would connect you with other maternal-line relatives of Elisabetha (Kessler) Weber and her mother Maria (Irmler) Kessler, but not with any relatives of Maria's husband Maria Kessler.)
Did you also do an autosomal DNA test? That's what you need to have if you want to go prospecting for relatives among people named Kessler.