OFFICIAL.--The following letter from Major Lally was addressed to Col. Wilson at Vera Cruz, by him forwarded to Adjutant General R. Jones, of Washington:
                                     HEADQUARTERS, JALAPA, Aug. 26, 1847.
To Gov. Wilson, Vera Cruz:
    My command reached this place on the morning of the 20th inst. We have fought our way triumphantly every inch of the route, but have had severe contests--nay, battles--with the guerillas: on the 10th at Passo Ovejas, (as before reported) on the 12th of August at the National Bridge, on the 15th of August at Cero Gordo, and on the 19th at Las Animas, only a mile and a half from this city. Not a wagon has fallen into the hands of the enemy--We have been opposed by at least 1,200 to 1,500 guerillas on these occasions--perhaps less at the last for they were badly whipped at Cero Gordo, where their loss was so large that they could not reorganize. Father Jarauta commanded them. Our loss is great. During the entire march--7 officers wounded: 12 of rank and file killed; 5 mortally wounded; 66 wounded. Of this number 4 killed and 4 wounded were at places elsewhere than the four actions named above. I regret to say that at the National Bridge, Mr. George D. Twiggs (expecting a commission to be A. D. C. to Gen. T.) was killed while gallantly serving in my staff; Capt. J. H. Calwell, of voltigeurs, and Captain A. C. Cummings, 11th infantry, were wounded on the 10th, (as before reported,) but are doing well now. At National bridge, Lieut. James A. Winner of voltigeurs, and Lieut. George A. Adams, of marine corps, were dangerously wounded; also, on the same day, Capt. W. J. Clark, 12th infantry, in the thigh, 2d Lieut. Charles M. Crearor, 12th infantry, not severely, in the leg. At Las Animas, on the 19th, Maj. F. T. Lally, 9th infantry, commanding officer, was wounded in the neck, not severely; but has, for a few days, been disabled from command. A large number of sick have accumulated, besides our wounded; and we shall be compelled to remain here many days to recruit. I cannot too much praise the gallantry of the officers--the men, raw and uninstructed, have gradually acquired confidence. Col. Wynkoop arrived from Perote on the 24th, having heard we were in danger at Cero Gordo. We waited three days for your reinforcemnt, and hearing of it at Plan Del Rio, sent back a body of dragoons to National Bridge who finding it in possession of the Mexicans, we concluded it was repulsed. I am pained at the rumor we heard of the loss of some of its wagons. Doctor Cooper and 13 wagons reached us. I cannot too earnestly recommend that you assume the authority to order the re-occupation of the city. Even if Gen. Scott was not before the city of Mexico and beyond the reach of reinforcements, you perceive that trains are constantly endangered by guerillas, and I am satisfied that this city has been their head quarters, and that their chief supplies have been forwarded from here. Their spirits have been raised by absence of the troops. I am certain that Gen. Scott, on the spot, would order its re-occupation. Col. Wynkoop concurs in its importance.     Very truly yours,
                                                        F. T. LALLY.
                                              Major 9th infantry, commanding.
    (We understand the maj. Lally's suggestion has been anticipated, and that orders were issued on the 12th of August, from the office of the adjutant general, directing the re-occupation of Jalapa. We presume that before this time a military post has been established in that city. We cannot doubt that major Lally's force joined with colonel Wynkoop's and general Lane's force, at least 2000, has advanced to form a junction with general Scott.)--Union.

Source:

Union, "Letter From Major Lally to Col. Wilson," Brooklyn Eagle and Kings County Democrat, Brooklyn, Monday, 11 October 1847, p. 2.