Siblings

His younger brother, Ian Lambton Menzies (1912–1941), who served in the RAAF, died on 18 April 1941 in an aircraft accident near Ravenswood, Queensland, and about 100 km miles south of Townsville.^{[7][8][9][10][11][12]}

Guy's other three siblings were: Betty Lambton Menzies (1915–1980), later Mrs. William A. Horsley,^[13] medical practitioner Bruce Lambton Menzies (1917–2021),^[14] and Kathleen Audrey Lambton Menzies (born 1921), later Mrs. Joseph S. Henderson.^[15]

Marriage

He married Mrs. Marcia Ina Grundy (born 1909), née Leslie, in London, on 12 April 1940.^[16][17]

The fact that the Sydney press announcement of his impending marriage identified his future wife as one "Mrs. Marcia Ina Grundy" is highly significant.^[18] Connolly (2017b) reveals that the 'true story' behind the "mysterious injuries" that Menzies sustained while serving at North Weald and reported in the 1936 press,^{[19][20][21][22]} were that—rather than receiving 'head injuries' from a 12 metres (40 ft) fall from a window—the most significant of the injuries that he had sustained (which were "not wholly consistent with a fall") were two broken kneecaps, of such severity that it was thought for some considerable time that he would never be able to fly again. The injuries that Menzies sustained had been inflicted upon Menzies by, or on behalf of, "one of his fellow officers", Squadron-Leader E.M.F. Grundy (26046), later Air Marshal Sir Edouard Grundy, the "aggrieved husband" of Marcia, with whom Menzies was having an affair. This fact, according to Connolly, explains why the details of the secret, internal, R.A.F. enquiries were never released to the public. According to Connolly, Marcia eventually divorced her husband, who had left England at some time before her marriage to Menzies,^{[23][24][25][26][27]} which took place some four years after Menzies had been assaulted.

Marcia, and her son Frederick Michael (born 1934),^[28] moved to Australia in 1946.^[29] Michael went on to join the RAAF.^[30][31]

Pilot's license

Menzies had gained his pilot's license in 1929,^[36] and had flying experience.^[37][38]

Southern Cross Junior

The plane Menzies used for his solo crossing was the Avro Sports Avian that Smith had flown from England to Australia, the Southern Cross Junior.^[39]

Blenheim

Fearing he might be denied permission for the flight,^[40] Menzies informed the authorities and his family that he was flying to Perth. Instead, he left Sydney at 1 AM on 7 January 1931, and headed for Blenheim, New Zealand.^[41][42]

Hari Hari

Poor weather forced Menzies off course, and after 11 hours and 45 minutes, with the high tides in the area removing any possibility of him making a safe emergency landing on a sandy beach, he crash-landed (at 3:12PM local time) upside-down in the La Fontaine Swamp near Hari Hari on New Zealand's West Coast, which he had supposed was a meadow.^{[43][44][45][46]}

As soon as it became known that Mr Menzies was heading for New Zealand . . . Colonel Horace C. Brinsmead, at that time Controller of Civil Aviation in Australia, dispatched a message to the Director of Air Services in the Defence Department in New Zealand. He asked for word about Menzies.
   "Pilot G. L. Menzies left Sydney at 1 a.m. this morning flying solo in an Avro Avian aircraft G-ABCF with destination New Zealand. This department had no prior knowledge of Menzies’s proposal. I understand he had fuel for 18 hours’ flight. Appreciate earliest advice of news of his arrival in New Zealand."
The day after the successful flight Colonel Brinsmead’s New Zealand opposite number replied.
   "Pilot Menzies made forced landing 20 miles south of Ross 3.12 p.m. yesterday. News of arrival and your cable arrived too late for early advice. Remarkable achievement but hope no more unheralded flights of this nature."
A note on the departmental file records the time of the flight as 12 hours 47 minutes. Leslie Jillett, in his book "Wings over [sic] the Tasman" gives the time as 12 hours 12 minutes and the aviator’s mother is reported to have said that his flying time was still half an hour less than that. — The Press, Tuesday, 13 July 1954.^[47]

Despite the unfortunate landing, Menzies had broken Smith and Ulm's time by 2½ hours.

Historical marker

An extensive outdoor historical marker with photographs and descriptions is located at GPS coordinates −43.076716, 170.531477 (south latitude, east longitude).^[48] The marker is approximately half a kilometre southwest of the actual landing spot (now on private land), which is marked by a pole with wind sock that are visible from the historical marker. News clippings and additional historical details are on display in the lobby of the Hotel Hari Hari, a few kilometres away on the State Highway 6.

Commemoration

He is commemorated at the Alamein Memorial in Egypt.^[55]