Booth served with the Brit­ish ar­my in Ben­gal, then joined the Sal­va­tion Army (SA) in 1881. Based on his pri­or ex­per­i­ence, the SA sent him back to In­dia in 1882. To reach the un­touch­a­bles, he adopt­ed their dress and be­came known as Fa­kir Singh, the Li­on of God. He was pro­mot­ed to Com­mis­sion­er, and in 1891 was trans­ferred to SA in­ter­na­tion­al head­quar­ters, where he and his se­cond wife, Em­ma Booth, worked as joint Com­mis­sion­ers for For­eign Af­fairs. They were sent to Amer­i­ca in 1896; Emma died there in a train wreck in 1903. Fred­er­ick re­turned to SA In­ter­na­tion­al Head­quar­ters in 1904, where he be­came For­eign Sec­re­ta­ry. He mar­ried his third wife, SA Col­o­nel Min­nie Reid, in 1906, and the next year they were trans­ferred to In­dia. The Vice­roy award­ed Fred­er­ick the med­al of Kai­ser-i-Hind in 1913. He re­turned to Bri­tain in 1919, and re­tired from the SA in 1924.

• Taylor, pp. 259-60

1. Tucker