Harriett (Cupids and Cowboys #1)
Pam Crooks

When Harriett learns the shocking secret her family has kept from her since she was a baby, she's thrown onto the brink of scandal. Worse, she must make the hardest decision of her life for a man she's never met.
U.S. Marshal Cord Brennan must escort a prisoner to Kansas before he can settle down and care for his crippled father in Texas. But the outlaw in his guard is desperate, and Cord's careful plans soon threaten to fall apart.
Charlie has his work cut out for him. Can he convince Harriett that Cord would make the perfect husband? Can he keep Cord from going back to Texas? Time is running out...