Elizabeth was born in 1815. She passed away in 1873. 
↑Descendants of Martin Ebert, Database of the Mr. Robert Sample. 
"Michigan Deaths and Burials, 1800-1995," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FHLK-RX4 : 9 December 2014), Elizabeth C. Ebert in entry for Esther Louise Hall, 30 May 1907; citing Saginaw, Michigan, reference v 1897-1908 p 251; FHL microfilm 967,177.
It may be possible to confirm family relationships with Catherine by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Catherine: