In February 1928 he launched a monthly printed magazine entitled ‘The Holy Rood Chronicle’. Canon Jackman was a mature priest with business ability and drive: he was a cheerful soul with a lively sense of humour. His appointment to Watford parish in 1927 was therefore all the more gratifying to him for he came to love and be proud of the beautiful church of the Holy Rood now in his care. Canon Jackman served on the Cardinal’s Committee for decorating Westminster Cathedral, so he would have gained a detailed knowledge and appreciation of Bentley’s work.
He was appointed a Domestic Prelate to the Holy Father. The Order of St Sava was conferred upon him and he was made a Knight Commander of the Holy Sepulchre, and a Commander of the Order of the Crown (Belgium). In 1910 he was appointed Privy Chamberlain to the Pope. Not long afterwards he became secretary to the by then Cardinal Bourne, an office he held for many years and during which he gained a wide insight into the administration of the church and the Westminster Diocese. John’s where he was ordained on 17th July by Bishop Bourne. John’s Seminary at Wonersh, and in 1893, at the age of fifteen, was accepted and spent six years there before going to Rome. Arthur Jackman at an early age wanted to enter St. Andrew Arthur, but he in turn was ordered by his doctor to take three months rest – The Cardinal thereupon appointed Canon Jackman to the parish with the assistance of Fr. Helen at Harebreaks now fell upon the shoulders of Fr. The duties of having to look after Holy Rood parish and the newly formed parish of St. Fr Andrew Arthur with altar boys, circa 1924 Not so long afterwards ill health, directly due to his war service, forced him to retire. On coming to Watford he found himself faced with having to acquire a plot of land and eventually to build a church, this time for the people of Callowland, in the area now known as Harebreaks, North Watford. After his discharge from the army in 1919 he was appointed to Hanwell with the task of erecting a new church to Our Lady and St. From May 1915 to March 1916 he was in the Ypres Salient, and from 1916/18 stationed at Etaples, so he shared fully with the troops the horrors and sufferings of the war and not for nothing was he mentioned in despatches. After his ordination he was priest for a time at the college, but he volunteered for service as an army chaplain in 1915 when he was already forty-three and not a young man. He was born in London in 1872 and educated at St.