She was born 1829? -1903 and lived in Ontario, Canada.
Donna, please see the following 1861 Ontario Census records. The three of them in Enumeration District 04 and Sheet No. 42:
George Niemeier: https://www.familysearch.org/ark:/61903/1:1:MQ78-LZ4
Elizabeth Niemeier: https://www.familysearch.org/ark:/61903/1:1:MQ78-LZH
Betsy Niemeier: https://www.familysearch.org/ark:/61903/1:1:MQ78-LZC
George was born in Germany ab. 1825
Elizabeth was born in Scotland ab. 1831.
Betsy (Thier daughter Elizabeth) was born in Canada ab. 1851
Now that is known where George and Elizabeth were from, here is the family in the 1881 Canada Census:
https://www.familysearch.org/ark:/61903/1:1:MVFP-CWT
Their daughter Emma (b. ab. 1855) got married on the same year 1881 according to the following record:
https://www.familysearch.org/ark:/61903/1:1:FMJK-X5S
Elizabeth's maiden name is said to be Creigil.
Hello Donna.
A picture of her gravestone is available at "Billiongraves":
https://billiongraves.com/grave/person/3895299
She was the wife of George Niemeier. They had a daughter named Elizabeth after her.
Their daughter Elizabeth was born ab. 1851. She got married on 1869 according to the following record:
https://www.familysearch.org/ark:/61903/1:1:FMFJ-73X
Hope this information helps in your search.