Alexander seems to have gone by the contraction Alex, rather than Sandy, as he signed himself Alex on the birth certificates of some of his children, of whom the couple had nine. Their eldest boy Adam was born on 24th February 1853 at Shandscross, at which time his father was a farm servant at Cotburn - a knot of locations named Upper Cotburn, Lower Cotburn and Hill of Cotburn just east of Fintry, about three miles north-east of Shandscross. Alex and Jessie seem to have lived mostly apart for the first fourteen years of their marriage, with Jessie and the children staying at Shandscross next door to her parents while Alex worked at farms around the district - perhaps to save money so he could save up to buy his own farm.
The next son, William, was born on 1st September 1855 at Shandscross, and on the registry entry for his birth it states that he is his mother's second child and that the couple have two boys, both living (presumably including William himself, since Alexander was twenty-three when he married Jessie, and a bit young to have had any previous officially-recognised and recorded relationships before her) - so we know Adam was their first child. [GROS OPR Births 1853 247/00 0030 0256 Turriff; GROS Statutory Births 1855 247/00 0081]
A daughter named Jessie was born circa October 1857, and a son James in 1860 or 1861, although neither child's birth is in the records. These two children both died of diphtheria at Shandscross in March 1866, in each case after an illness of about one week, Jessie on the 13th (at 5:50am, her father being present) and James in the 22nd (at 1pm, father not present, probably because he was at work); so James fell ill a few days after his sister's death, and then he too died. [GROS Statutory Deaths 1866 247/00 0012; GROS Statutory Deaths 1866 247/00 0013]
A fourth son, Robert, was born on 27th June 1863 at Shandscross (and registered under the variant spelling Shirron), and the fifth, George, was born on 27th August 1866, five months after the deaths of Jessie and James. From this point onwards Alex and Jessie seem to have been living together. The registry entry for George's birth says he was born at Bogside in the parish of Auchterless, which would suggest Bogside near Cushnie which is about half a mile south-west of Kirktown of Auchterless, near Logie Newton where Alexander Shirran was working in spring 1871. The 25-inch Ordnance Survey Aberdeenshire Map Sheet XXVIII.52, surveyed 1869 and published 1873, shows that Bogside was the farmstead now called Sunnyside, just across from the Free Kirk and its manse, now called Pinewood. [GROS Statutory Births 1863 247/00 0076; GROS Statutory Births 1866 173/00 0063; Census 1871 249/0B 002/00 006]
When he joined the army, however, George would claim to have been born in the parish of Monquhitter, which would suggest he was born at Bogside of Greeness (or even the tiny Bogside Croft which is six hundred yards east of Mill of Muirtack, although it is too small to appear on any but the finest-scale map). [Short Service attestation 1883] But the proximity to Logie Newton and the certificate attributing his birth to Bogside in the parish of Auchterless makes Bogside near Cushnie more likely. George lied about his age when he joined the army, so he may have lied about his birthplace too, or genuinely not known it.