Concerns appointment of Castro as governor of Provincias Internas de oriente. Castro petitions permit to travel and take care of personal business. Index of letters about civil and military administration, indexes contain brief descriptions of duties carried out in Provincias Internas de oriente, I.e. licences, campaigns, appointments, Indian affairs, military supplies, horse stealing, travels etc. (M. Marroquin, March 1989)

Concerns seies of letters of reorganization of troops and providencias declared to the governor. Urrutia is said to be illiterate and too old for his responsibilities so he should be granted cedula of invalid. Letter reporting casualties in war against Indians. Report on military actions against Lipanes. Cueva petitions for rank of lieutenant Colonel. Status of Invalidos given to soldiers. Indians stole gunpowder from Laredo and Galvan is held responsible. He is jailed but released when proven innocent. Muniz gets refund for sale of cattle. Testimony for santo oficio is expected from Alange. Tax exemption to miners who build missions is mentioned. Puga and Mugier are escorted to the capital. Notice of pardon to those guilty of contraband.

Concern cedulas of invalid given to soldiers. Pensions given to widows and children of soldiers killed in campaign against Apaches and Lipanes. Cueva is promoted to lieutenant Colonel. Alderete is given cedula of invalid. Notice of vacancy for Alferez in Parras. Letters giving notice of prosecution of soldiers from Aguaverde. Castro notifies viceroy about deterioration of health due to intensive raining. Transfer of soldiers to San Cristobal. Letter about the Queen giving birth. Legal jurisdiction given over Nuevo Santander. Revision of archives and accounting records of outgoing governor is done due to inconsistencies on reported outlays made in war against Indians. Refund given to governor Castro for travel expenses. Corlier receives title of marquez. Maxent receives licence to travel to Valladolid. Series of letters confirming procedures for processing legal documentation are sent from viceroy's and governor's offices (authorizations of licences to travel, taxes, migration, marriages etc.). (M. Marroquin, March1989)

Series of documents dealing with review of accounting records and archives left by Riperda during his administration. Valdez is recommended by Castro as Alferez de Monclova for his long experience in war against Indians. Letter discussing pensions for widows of soldiers killed in campaigns. Villegas got killed in campaign against Lipanes. Nunez widow asks for pension to support her children. Gutierrez de la Cueva asks for degree of Colonel. Alba is appointed to presidio of Rio Grande. Cedula de Invalidos granted to soldiers from Nuevo Santander. Cedula de invalido granted to Alderete. Notices of control de Alcabalas given. (M. Marroquin, March 1989)

Concerns Series of documents dealing with military appointments in various presidios. Trevino recommended as alferes, military record given but Alvarez is appointed instead. Maxent go to Valladolid. Baquera requests a job because his pension isn't enough to support family. Prosecution against Puga and Mugier. Warrant for the arrest of Foremocha issued. (M. Marroquin, March 1989)

Series of documents dealing with military administration such as permits, licences, invalids status, promotions, demotions etc. Letter explaining that Falcon wasn't responsible for robbery in presidio so he must be restored to his previous position as sargent. (M. Marroquin, March 1989)

Concerns soldier requesting status of invalido after loosing genitals in fight against Indians, doctor certifies injury and inability to continue fighting. Trevino is suggested for post of Alferez in Lampasos. Bustamante y Berroteran requests promotion to Colonel. Military official requests permission to go to Mexico to take care of personal business. Berroteran solicits promotion for his contribution in exterminating cucuyomes. Documents continue process of selecting Alferez for presidio of Parras. Qualities of every prospect for position are mentioned in process of selecting Alferez. Military official requests licence to marry. (M. Marroquin, March 1989)

Series of documents dealing with expeditions and campaigns in Indian's territory; Castro gives notice to viceroy of his suffering from a scab on his leg; review of prospects for position of Alferez de Aguaverde is made; leme is suggested as the best candidate to position of Alferez because of his experience in war and seniority in the army. (M. Marroquin, March 1989)

Series of letters from Castro to the viceroy concerning a varieties of issues such as, status of mines in Santa Rosa, marriage licences, business licences, release of soldiers suspected of crimes and negligency, promotion of official as intendente de puerto Rico, approval of military assistant for the governor, Baamonde request degree of Colonel. (M. Marroquin, March 1989)

Concerns Series of letters giving notices of taxes, military actions against Indians, congratulations to officials for successful campaigns, soldiers from fronteras being exempted from paying taxes, reports on the status of military forces asked, charts reporting military status in Nuevo Santander (report includes ammunition, food, weapons, mules, horses, clothing, etc). Diaries of activities held with several military companies. Diary of activities done in Aguaverde (chart shows civil, military and religious personnel in presidio, also shows number of sick people). Diary of military operation in Monclova. Series of testimonies given by witnesses of confrontation with Indians. (M. Marroquin, March 1989)