[1] Four years later, Lilliehöök again served as Commandant General of Stockholm Garrison but only for a few months, from April to December 1940.

He also promoted the voluntary shooting movement and was chairman of the central board of the Rifle Association of Sweden (Sveriges skytteförbunds överstyrelse) from 1934 to 1943.

He was chairman of the Jämtland County Ski Runner Association (Jämtlands läns skidlöpareförbund) from 1918 to 1928, and of the Swedish Lapland Mountain Men's Club (De lappländska fjällkarlarnas klubb) from 1929 to 1945 and in the Swedish Mountaineering Club (Svenska fjällklubben) from 1938 to 1944.

In AB Tipstjänst, he was King in Council's representative from the beginning of the company's operations from 1934 to 1941 and chairman of its working committee from 1934 to 1943.

[4] Lilliehöök married for the first time on 24 September 1901 in Hedvig Eleonora Parish, Stockholm, to Gerda Eva Anna Helena Gabriella Hansson (13 September 1872 in Stockholm – 12 May 1927 in Östersund), the daughter of the wholesaler Lars Peter Hansson and Sofia Josefina Lagercrantz.

[1][5] He married for the second time on 18 July 1929 in Misterhult, Kalmar County, to Irma Maria Pagel (12 October 1894 in Stockholm – 29 September 1972 in Stockholm), the daughter of the wholesaler Axel Julius Pettersson Pagel and Alida Maria Edberg.