In April, Mrs. McDonald embarked for the United States with her children, to provide for their education there, her husband remaining at his post, preaching, superintending the press and translating the Scriptures of the Old Testament.

Oct. 19, 1875, the Rev. S. G. McFarland and Mrs. McFarland returned to Siam, and with them came the Rev. Eugene P. Dunlap and wife. On their way down the China Sea they encountered a typhoon and for many hours were in imminent danger.

Dr. Cheek was married in December to Miss Sarah A. Bradley, daughter of the late Rev. D. B. Bradley, M. D., and in February, 1876, Miss Arabella Anderson was married to the Rev. Henry V. Noyes of the Presbyterian mission in Canton, and left with him, to return to Siam no more. The place she had so well filled in the girls’ boarding-school at Bangkok was taken by Miss Grimstead. The number of pupils then in attendance was twenty.

The health of Mrs. House had now become so seriously impaired by eight months’ continuance of severe attacks of asthma that her longer stay in Siam was out of the question, and she was reluctantly obliged to hand over to others her cherished work of female education and the school for girls, now in successful operation. With like regret did her husband leave the people and the country for whose good nearly thirty years of his life had been given. Dr. and Mrs. H. left for home in March, 1876, taking with them two Siamese lads of eleven to be educated in the United States under their care.

Their departure made necessary the coming over of Mr. and Mrs. Van Dyke from Petchaburee to take charge of the upper station at Bangkok and assist Miss Grimstead in the management of the girls’ school. This same year, in June, Mr. and Mrs. Wilson, with health quite broken by exhausting labor in their Laos mission, had to go to the United States to rest and recover strength. Mr. W. improved the opportunity to procure in America the casting of a font of Laos type—​no easy task. At Cheung Mai this year the widow of one of the martyrs was baptized with her two daughters, and Nan Intah, the first Laos convert, had the happiness of seeing his wife and son-in-law received to the church, and not long after two daughters and a son.

In 1877 the first Siamese convert baptized in the Presbyterian mission, Nai Chune, was called to depart. He died as one who “knew in whom he believed,” and said in parting from the missionary friend who visited him, “I must go first, but I will be waiting at the gate to welcome the rest of you when you come.” This year Mr. McDonald rejoined his family in the United States, returning with them the year following. The state of Miss Grimstead’s health compelled her return to America and the severance of her connection with the Board. The native churches received large accessions during the year, thirteen being added to the Bangkok church, twenty to the Petchaburee and ten to the church at Cheung Mai, making the total number of communicants in Siam one hundred and four, and in Laos nineteen. The king of Siam manifested his interest in the work of female education by the generous gift of a thousand dollars toward the building for this purpose the mission was erecting at Petchaburee. This sum was handsomely supplemented by twelve hundred and sixty dollars more, contributed by some of the higher princes and nobles.

Early in the year 1878 the Rev. J. M. McCanby arrived, and Miss Jennie Korsen—​the last to take Miss Grimstead’s place in the girls’ boarding-school. The Rev. S. G. McFarland, D. D., withdrew this year from his connection with the mission, having been invited by His Majesty to take the presidency of the newly-planned King’s College at Bangkok. The mission press during the twelve months, under Mr. Culbertson’s energetic supervision, issued over a million pages of Scripture and other truth.

In October, 1878, Mr. Wilson, leaving Mrs. W. in America, as her health did not admit of her accompanying him, embarked on his return, and under his escort three lady missionary teachers—​Miss Belle Caldwell for Siam, and Miss Edna S. Cole and Miss Mary Campbell for the Laos. Miss Korsen becoming Mrs. McCauley and removing to the lower station to assist her husband in charge of the boys’ school, Miss Caldwell took her place at the school for girls. The boys’ school under the McCauleys had a membership of fifty-five, and good progress was made in study.

An appeal having been made to the king of Siam by the missionaries to the Laos in behalf of certain oppressed native Christians, he was graciously pleased to issue (Sept. 29, 1878) a proclamation establishing religious toleration in Laos, and by implication throughout all his dominions.

Under the direction of the Presbytery of Siam two new churches were organized this year—​one at the upper station of Bangkok, the other at Bangkaboon, a fishing-village near Petchaburee. The native Christians at Bangkok by their contributions provided for the erection of a house for the native preacher at Ayuthia, and the entire support of another assistant there. The total church-membership in Siam now was one hundred and thirty-three, and in Laos thirty-one.