According the burial record he died of consumption.

Cumberland Daily Times; Cumberland, Maryland
Wednesday, January 12, 1876 - page 4, column 2
Dead - Mr. Patrick Kennedy, proprietor of the Connellsville Hotel on Mechanic St., died at his residence at an early hour this morning.

Daily Cumberland Alleganian; Cumberland, Maryland
Friday, January 14, 1876 - page 9, column 3
THE DEATH OF MR. PATRICK KENNEDY, a well know citizen occurred Wednesday, the funeral taking place yesterday. St. Edward's Society, of which the deceased was a member formed a part of the funeral procession; the Society being followed by a large number of friends who manifested by their attendance on this sad day their respect for the dead. The funeral services were held in St. Patrick's church and the remains interred in the cemetery in North Cumberland. (Courtesy of Pat Dailey)

According the burial record he died of consumption.

Cumberland Daily Times; Cumberland, Maryland
Wednesday, January 12, 1876 - page 4, column 2
Dead - Mr. Patrick Kennedy, proprietor of the Connellsville Hotel on Mechanic St., died at his residence at an early hour this morning.

Daily Cumberland Alleganian; Cumberland, Maryland
Friday, January 14, 1876 - page 9, column 3
THE DEATH OF MR. PATRICK KENNEDY, a well know citizen occurred Wednesday, the funeral taking place yesterday. St. Edward's Society, of which the deceased was a member formed a part of the funeral procession; the Society being followed by a large number of friends who manifested by their attendance on this sad day their respect for the dead. The funeral services were held in St. Patrick's church and the remains interred in the cemetery in North Cumberland. (Courtesy of Pat Dailey)