- Author: Pacheco Cueva Vladimir
- Language: English
- Year: 2017
- Author: Paarlberg Robert L
- Language: English
- Year: 2010
- Author: Ostović Vlado
- Language: English
- Year: 2017
- Author: Osborne S. L
- Language: English
- Year: 2013
- Author: Wallace David Rains
- Language: English
- Year: 2015
- Author: Wallace David Rains
- Language: English
- Year: 2015
- Author: Ontario Genealogical Society., Smart Susan
- Language: English
- Year: 2013
- Author: Olson Miles
- Language: English
- Year: 2014
- Author: Ochieng-Odhiambo Frederick
- Language: English
- Year: 2011
- Author: Newland David, Still Robert, Swash Andy
- Language: English
- Year: 2015