In the first two decades of the Twentieth Century, there was considerable objection to accepting Jews in existing lodges. As a result Bro. Arthur Brookstone, with the assistance of three Past Masters of Alpha Lodge No. 384, saw the necessity for a Lodge for people of Jewish Faith. In 1913 the Mount Sinai Lodge was formed as a Lodge for members of the Jewish Faith and Bro. Brookstone later became one of the founding members of Palestine Lodge No. 559.

The year 1920 marked the beginning of the Flapper Era and the merger of the Royal North-West Mounted Police and the Dominion Police to form the Royal Canadian Mounted Police.

Around this time a remarkable resurgence in Masonic interest was also taking place when many young men returning from war, began to join various Lodges. Among the new lodges formed at this time was Palestine Lodge No. 559.

On January 28th, 1920, Palestine Lodge became a Masonic entity and thus began a saga of Masonic dedication that was to follow unempeded by time.

The first Regular Meeting of the Lodge took place at the Masonic Temple Building at 888 Yonge St., Toronto on February 25th, 1920 with twenty-one officers and members, together with thirty-eight visiting brethren present. By the end of the first year, the lodge could boast a total eighty members and was showing every indication of a successful future.

At the close of the first year, it was considered in the best interest of the Lodge, for the W.M.(W.Bro. E.J. Redpath) and the other officers to remain in the post for another term. By doing so, it was felt that the officer corp would be strengthened and a solid foundation on which to build a strong and vibrant Lodge would be created.
There followed decades of growth and Masonic fraternity with a goodly portion of Charity.

A formal notice came before the Lodge on November 24, 1993, following which a petition was made to the Grand Master for permission to change the name of the lodge to Mosaic Lodge No. 559 G.R.C. This was approved in time for the Ceremony of Investiture and Installation of Officers on September 22, 1994, the commencement of the lodges Seventy Fifth year.

Thus a remarkable and wonderful era in Masonic achievement ended after approimately 74 years, and a new future awaited the brethren of the Lodge under the name Mosaic