As with brother George, there has not been any O.P.R. of Birth found gor this Andrew.
There is a reference that an Andrew Jameson had died before certain documents had been prepared and that George was the eldest son. This can be interpreted to mean that George was the eldest surviving son, not the oldest son.
There is however, a OPR marriage record for a 31 January 1613 of an Andro Jamesone to a Agnes Drum, in Aberdeen (# 168/0A 0120 0297)
and a subsequent OPR birth record for a 14 Nov 1613 of an Andro Jamesone to this same Andro and Agnes (Drum) Jameson, also in Aberdeen City (# 168/0A 0020 0192).
Both suggesting that perhaps this Andro Jmesone did live to maturity.