Cholera broke out among the European troops at Bangalore about the 22nd of March 1833; and in the course of fire weeks the regiment lost Captain Thomas Meyrick, four serjeants, forty-two rank and file, two women, and eleven children. Captain Meyrick had served twenty-two years in the Thirty-ninth, fourteen of which he had been adjutant of the regiment.
In consequence of Lieut.-Colonel McPherson proceeding to England on the 15th of December 1833, on two years’ leave of absence, Major Poole became the commanding officer of the regiment.
1834.
Early in 1834, the regiment was called upon to take part in active field operations against the Rajah of Coorg. This prince, a dependent ally of the British, had for some time excited the attention of the government by a series of cruelties and oppression towards his subjects, and had made open preparations to resist its authority. Confiding in the natural difficulties of his country, he presumed to defy the arm of British power, and encouraged proclaimed rebels to take refuge in his jungles and mountains; he finally reached the climax of misconduct, by the outrageous act of arresting an accredited envoy from the government, who had been sent to endeavour to re-establish amicable relations.
A field force, consisting of upwards of seven thousand men, was formed and divided into four columns; the command of the whole was assigned to Colonel Patrick Lindesay, C.B., who received the temporary rank of Brigadier, and Captain John Douglas Forbes, of the Thirty-ninth, was appointed deputy assistant adjutant-general of the force.
The regiment was directed to furnish four hundred rank and file to form the European force of the Eastern Column; and on the 17th of March, the following detail, under the command of Major Thomas Poole, marched from Bangalore in light service order:—
| Field Offr. | Captns. | Subs. | Staff. | Serjts. | Drms. | Rk. & File |
| 1 | 6 | 12 | 1 | 25 | 6 | 400 |
The column rendezvoused at Periapatam, within a few miles of the hostile country, where final arrangements were made for the attack.
It having been decided that the column should move on two points, it was divided into two divisions, and a part of the regiment attached to each. On the 1st of April, the head-quarters, consisting of four companies, with the part of the column under the personal direction of the Brigadier, marched for Bedalapoor; and Major Poole was nominated to the command of the Infantry Brigade, while Captain Horatio Walpole succeeded to the charge of that portion of the regiment. Captain Smyth, with the other three companies of the regiment, remained with the division under Lieut.-Colonel Stewart, of the East India Company’s service.
On the 2nd of April, the Cavery was crossed, and the Coorg country entered by both divisions; the opposition made by the enemy was trifling, and the casualties in the regiment were very few. Captain Smyth and one serjeant were wounded.