Buster Merryfield and Horses" in January 1985, as the former seafaring Albert Gladstone Trotter, known as Uncle Albert, who was Grandad Trotter's globetrotting long-lost younger brother, and who was known for Uncle Albert's catchphrase of "During the war..." The character took over the role of senior citizen member of the Trotter family from Lennard Pearce, who played Grandad, after Pearce died unexpectedly in December 1984. Coincidentally, nine months earlier, in March 1984, Merryfield appeared in two episodes of a "Shroud for a Nightingale" alongside Lennard Pearce. He did much work for various charities, notably the Royal National Lifeboat Institution. He wrote his
Most recent common ancestor all of the modern population. Due to pedigree collapse, modern individuals may still exhibit clustering, due to vastly different contributions from each of ancestral population . Most recent common ancestor In biology and genealogy, the most recent common ancestor (MRCA, also last common ancestor (LCA), or concestor) of any set of organisms is the most recent individual from which all the organisms are directly descended. The term is also used in reference to the ancestry of groups of genes (haplotypes) rather than organisms. The MRCA of a set of individuals can sometimes be determined by referring to an established pedigree.