Cyrille Dion had an older brother, Joseph, also a top player; the brothers sometimes played matched against each other as well as teaming up against others.
On July 21, 1870 Joseph lost to Cyrille in a 750-point match at American four ball billiards to 750 points, held at Captain Boyle's Astor Billiard Room in New York City (corner of Barclay Street and Broadway).
Cyrille was the winner with a final score of 750 to 557.
Another fraternal match was played on September 15, 1870, in American four ball billiards, again to 750 points.
The match played out at Nell Bryant's billiard hall in New York City (Broadway and 32nd street), with a large assemblage of well known billiard patrons present.
Cyrille beat his brother by over 300 points.
The brothers switched to straight rail then, playing to 100 points; Joseph came out on top, 100 to 83.

On April 10, 1871 the brothers formed a team and played scotch  doubles against A. P. Rudolphe and John Deery at Platt's Hall in San Francisco.
The format was American four ball billiards to 2,000 points, with $1,000 staked by both teams.
The Dions were the victors, 2,000 to 1,560.
Cyrille Dion had an older brother, Joseph, also a top player; the brothers sometimes played matched against each other as well as teaming up against others. On July 21, 1870 Joseph lost to Cyrille in a 750-point match at American four ball billiards to 750 points, held at Captain Boyle's Astor Billiard Room in New York City (corner of Barclay Street and Broadway). Cyrille was the winner with a final score of 750 to 557. Another fraternal match was played on September 15, 1870, in American four ball billiards, again to 750 points. The match played out at Nell Bryant's billiard hall in New York City (Broadway and 32nd street), with a large assemblage of well known billiard patrons present. Cyrille beat his brother by over 300 points. The brothers switched to straight rail then, playing to 100 points; Joseph came out on top, 100 to 83.
On April 10, 1871 the brothers formed a team and played scotch  doubles against A. P. Rudolphe and John Deery at Platt's Hall in San Francisco. The format was American four ball billiards to 2,000 points, with $1,000 staked by both teams. The Dions were the victors, 2,000 to 1,560.
Cyrille Dion