We know that Tyerman was preacher on the following Methodist circuits, aged 24-44:
1844 Thirsk
1845-1847 Iver/Uxbridge
1848-1850 London (Lambeth) with three others
1851 Bristol (Langton Street) with two others
1852-1854 Newcastle with three others
1855-1857 Sheffield (Norfolk St) with three others
1858 Manchester (Irwell Street) with three others
1859 Manchester (Irwell Street) with five others
1860 Manchester (Gravel Lane) with Luke Wiseman
1861 Liverpool (South) with four others
1862 Liverpool (South) with five others
1863 Liverpool (Wesley) with two others
1864 London (Brixton Hill) Superintendent