Timothy Pont's map of 1604–1608, published in 1654 by Joan Blaeu, marks Lady Isle by that name and indicates that a structure is present on the island, presumably the chapel.

[2] John Adair in his 1686 A mape of the west of Scotland containing Clydsdail, Nithsdail, Ranfrew, Shyre of Ayre, & Galloway.

[4] The Geographical Collections relating to Scotland state: The Lady Isle, which belongs to the Earle of Dundonald by gift from one of the Scottish Kings, lays west from Corsbie about 3 or 4 miles of sea, where is the mines of ane old chapell with an excellent spring of water, abounds with rabels, plenty of all sorts of water foull and whyt fish in good store about it.

The building was broken into several times and eventually a family of fishermen from Troon were arrested, tried and given a relatively small fine.

As stated, a chapel was built, here dedicated to the Virgin Mary and endowed by John Blair in 1446 with the common land of Adamton.

When the bird observatory and warden's post was being built, the architect noted that there were signs of some sort of ancient ecclesiastical building on the island.

[9] The town of Glasgow (c. 1776) set up a pair of beacons on Lady Isle to indicate the position of the anchorage, which was situated to the east or inshore, for the benefit of ships serving its merchants.

Ships of over 220 tons, too large to enter the harbours of Saltcoats [NS24SW 44.00], Irvine [NS33NW 40.00] or Ayr [NS32SW 123.00] could find anchorage in 10 to 14 fathoms [18 to 26m] in an area east of, and covered by Lady Isle [name: NS 275 293].

Established in 1903 the lighthouse is not the standard round tower type but rather consists of a platform built on buttresses with an exterior stairwell.

[17] A small wooden storage hut sits beside the lighthouse, rather oddly inscribed Social Security Appeals Tribunal.

[18] A large white horizontal cylinder used to hold the gas supply for the lighthouse light which was converted to electricity during the refurbishment and solarisation in around 2004.

[21] The observatory carries a sign saying that it was built In memory of Johnny Warren, honorary warden Lady Isle Sanctuary Troon who died 24 May 1958.

[25] Mr. Donald J. Cameron, was the architect for the SSPWB and he informed their Secretary that there were signs of some sort of ancient ecclesiastical building on the island.

A professional Dutch diver was supposedly hired to do the salvage job, making his headquarters on the isle, with a store ship standing by.

[9] One of the Masters of a Kilwinning Lodge was presented with a wooden mallet which had been made with wood from one of the Armada ships which had been wrecked on the Ayrshire coast.

[22] A population of rabbits survive with partially collapsed burrows criss-crossing the parts of the islet with have a significant depth of soil.

[30] Smith records sea mouse-ear (Cerastium diffusum), narrow-leaved mouse-ear (Cerastium triviale), sea-pearlwort (Sagina maritimum), corn spurrey (Spergula arvensis), greater sea-spurrey (Spergularia media), dovesfoot cranesbill (Geranium molle), common stork's-bill (Erodium cicutarium), common vetch (Vicia sativa), bramble (Rubus fruticosus), common silverweed (Argentina anserina), marsh cinquefoil (Potentilla palustris), and English stonecrop (Sedum anglicum) for Lady Isle in the 1890s.

In the late 1950s a coastal cargo carrying Ex VIC 9 ship named 'Lady Isle' still plied its trade in Scottish waters.

VIC stands for Victualling Inshore Craft and these ships were technically steam coasting lighters or "puffers".