The Bishop seems to have been possessed with a consuming fear of Romanism. Every charge he delivered during these years was surcharged with warnings against the insidious spread of popery. He was not only averse to, but fiercely hostile against, the whole Oxford movement; and every departure from the doctrines and usages with which the reign of Puritanism in the Church of England had made them familiar, was viewed with grave if not with trembling suspicion.
In 1871, the Bishop's health had so failed that he was obliged to ask for a coadjutor. In the election which followed, Dr. Helmuth was chosen by a considerable majority over his opponent, Archdeacon Marsh, whose able management of the Church Society had given him great influence throughout the Diocese.
The state of Bishop Cronyn's health was such that the whole care of the Diocese devolved at once upon the coadjutor. In less than a year Bishop Cronyn died, and Dr. Helmuth became Bishop of Huron by right of succession. He devoted himself with great earnestness to his work, and soon became very popular throughout the country. He found that there were still many townships unsupplied with the ministrations of the Church. Following the example of the Diocese of Ontario, he secured the incorporation of the Synod, and had the entire management of the Church finances transferred to that body.
There was great monetary stringency throughout the country from 1873 to 1878, and yet Dr. Helmuth was enabled to report an increase of 42 clergymen, 58 churches and missionary stations, 31 parsonages, and 5420 communicants, during the 12 years of his term of office. Within that period also he had ordained 76 deacons and 72 priests.
Bishop Helmuth's Episcopate was, however, specially distinguished by his great efforts in the promotion of Christian education. In addition to the important services which he rendered in connection with the establishment of Huron College, he manifested such zeal and liberality in the establishment of the Helmuth Ladies and Boys Colleges, in the City of London, as will not soon be forgotten in the Diocese of Huron.
Bishop Helmuth resigned his See, and retired to England in 1883.
The above was published in 1892
After Isaac Helmuth resigned as Bishop of Huron in 1883 he returned to England with his ailing wife who died a year later. His subsequent career was a quiet one with a series of parish ministries. He remarried in 1886 and lived in France before retiring in 1899. He died May 29, 1901 and is buried in the Priory churchyard in Bridlington, York, his first parish on his return to England.