Traveler and his descendants were mated to some excellent mares, and many Quarter Horses today trace to him in male line of descent. The Most Influential Sire. The most famous of all sires in the establishment of the Quarter Horse breed was Peter McCue, foaled in 1895, and bred by Samuel Watkins of Petersburg, Illinois.raveler and his descendants were mated to some excellent mares, and many Quarter Horses today trace to him in male line of descent. The Most Influential Sire. The most famous of all sires in the establishment of the Quarter Horse breed was Peter McCue, foaled in 1895, and bred by Samuel Watkins of Petersburg, Illinois.
source definition: The definition of source is where someone or something came from. (noun) An example of a source is solar energy coming from the sun. An example of a source is the person who inspires you. An example of a source is the person who...
Definition of source for Students. 1  1 : a cause or starting point the source of a rumor. 2  2 : the beginning of a stream of water the source of the Nile River. 3  3 : someone or something that supplies information a reference source. 4  4 : someone or something that provides what is needed a source of supplies a source of strength.