Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Holiday in a Stetson | 2011 | Marie Ferrarella | Buy |
| 2 | The Cowboy’s Triplets | 2011 | Marie Ferrarella | Buy |
| 3 | The Cowboy’s Bonus Baby | 2011 | Marie Ferrarella | Buy |
| 4 | Holiday in a Stetson: The Sheriff Who Found Christmas /A Rancho Diablo Christmas | 2011 | Marie Ferrarella | N/A |
| 5 | The Bull Rider’s Twins | 2011 | Marie Ferrarella | Buy |
| 6 | Cowboy Sam’s Quadruplets | 2012 | Marie Ferrarella | Buy |
| 7 | His Valentine Triplets | 2012 | Marie Ferrarella | Buy |
| 8 | A Callahan Wedding | 2012 | Marie Ferrarella | Buy |
| 9 | The Renegade Cowboy Returns | 2012 | Marie Ferrarella | N/A |
| 10 | The Cowboy Soldier’s Sons | 2012 | Marie Ferrarella | Buy |
| 11 | His Callahan Bride’s Baby | 2013 | Marie Ferrarella | Buy |
| 12 | A Callahan Outlaw’s Twins | 2013 | Marie Ferrarella | Buy |
| 13 | The Cowboy’s Bonus Baby & The Bull Rider’s Twins | 2013 | Marie Ferrarella | Buy |
| 14 | Branded by a Callahan | 2013 | Marie Ferrarella | Buy |
| 15 | A Callahan Christmas Miracle | 2013 | Marie Ferrarella | Buy |
| 16 | Callahan Cowboy Triplets | 2013 | Marie Ferrarella | Buy |
| 17 | Her Callahan Family Man | 2014 | Marie Ferrarella | Buy |
| 18 | More Than Expected | 2014 | Marie Ferrarella | Buy |
| 19 | Sweet Callahan Homecoming | 2014 | Marie Ferrarella | Buy |
Callahan Cowboys is a nineteen-book Western romance series published between 2011 and 2014 under the Harlequin American Romance imprint. The series follows the Callahan brothers, six men who were raised on their family’s Rancho Diablo spread in New Mexico. When an old family rival threatens to take the ranch, the brothers learn that the only way to hold onto their birthright is to marry and start families of their own.
What makes the series distinctive is its focus on large families and multiple births. Titles like The Cowboy’s Triplets, Cowboy Sam’s Quadruplets, and His Valentine Triplets make it clear that the Callahan men do not do anything in small numbers. The series moves through each brother’s story while building toward a resolution of the larger family conflict. By Sweet Callahan Homecoming, the final book, the brothers have gone from stubborn bachelors to devoted family men defending their home.