I have some information that may be of assistance:
David P Bates b 23 Mar 1847 Oxford Co., Ontario, Canada and d 07 Jan 1911 in Hammond, Tangipahoa Parish, Louisiana, USA. he was married to Sarah Annette (Nettie) Drury b Apr 1859 in Iowa, USA and d after 1910 in Louisiana, USA. They had 4 daughters:
1. Alethia A Bates b Aug 1877 Holt Co., MO, USA;
2. Gerty Bates b abt 1881, Deep Creek, Clinton Co., Iowa, USA;
3. Laura Bates b 30 Sep 1885 Deep Creek, Clinton Co., Iowa, USA;
4. Ruth Bates b 15 Jan 1891 Deep Creek, Clinton Co., Iowa, USA.
I hope that this helps.