Courtesy of the David Vance SAPP process.

Dave Vance Named FamilyTreeDNA General Manager
www.jdvsite.com - The SAPP algorithm
0---Node# 933: Est. TMRCA: 3 generations or 84 years ago (1866 AD)
        1---229458 McClellan Scotland: Map Unknown, 37 STRs FTDNA Known SNP: M173 Est. TMRCA: recent. Kit is courtesy of the FTDNA McClellan Project.
        1---261223 Thomas McClelland 1801 Newry, Down, Ireland: Map Unknown, 67 STRs FTDNA Known SNP: M269 Est. TMRCA: recent. Kit is courtesy of the FTDNA McClellan Project.

Note: Dates are measured from the epoch which is 1950 and age estimates vary by 15% to 20%. The few red colored ages (on the SNPs) and the green age at the top is Family Tree DNA's eatimate for the SNP itself. The green in-line ages are the SAPP estimate for the kits being analyzed (not the SNP).