Bertha Clinch was born 5 January 1890 (or possibly 1891) to William Clinch and Mary Robinson in Hudson County, New Jersey.https://familysearch.org/pal:/MM9.1.1/FCP7-WJY
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The date in the index entry says 1890. However, some indexers picked up the wrong date for entries from January to June, so it is possible the date was actually 1891.
You should investigate FamilySearch records further for this family. There were other people named Clinch in Hudson County.