- Country: USA
- Genres: Drama, Short
- Release: 1913-04-14
- Director: Herbert Brenon
- Writers: J.R. Clements
- Language: English
- Stars: Herbert Brenon , William E. Shay , Lillian Langdon
- Runtime: min
- Awards: N/A
- AKA: Blood Will Tell (United States of America) , Blood Will Tell , The Sins of a Brother (United States of America)
- Plot: N/A
- IMDB:tt0342135
Blood Will Tell Cast
Herbert Brenon
Director
Herbert Brenon
The Younger Brother
William E. Shay
The Older Brother - the Detective
Lillian Langdon
The Mother