Just found this from the FB forum, in French and hard to read but I will try to get ot translated sometime soon.

Marie-Nelly Lartigue

She is the first lady mechanic at Le Mans.
She is wearing a black overall, not an evening dress but a mechanic’s overall which she wears with pride like ladies would wear their evening gowns.
She is very feminine with her slight figure and her shoulder length chic brown hair. Her elegant slim fingers handle the sockets and ratchet with dexterity.
She knows how to change wheels and check the engine when necessary. Marie-Nelly works like a man in the pits of the Lola T290 driven by Barrie Smith and René Ligonnet. She is not a dolly bird time keeper. She is a mechanic who has taken full responsibility of her job. She expects to spend her life in the pits, not in the office as a medical secretary which she found so stuffy only a few months ago !

For the 1st time at Le Mans a woman will work on a competing racing car. Aged 23 she has agreed to be properly trained and able to face all eventualities !
Born in a large family of 10 children, all passionate about mechanics, she learnt at a young age the 1001 complexities of a engine, unlike some men who brake down on the side of the road and do not know what the problem is !

During a stay in England near the famous Brands Hatch circuit in Kent, she met the racing driver, Barrie Smith who employed her to follow him in various races. Now as part of the Avalon Racing team, people are starting to take her seriously in the world of auto racing.

Kodak Pathé is very keen to promote it’s image to young people. Kodak wishing to be part of motor sport offered a serious budget to René Ligonnet and Barrie Smith and they entered a Lola T290, a 2 litre car at the 24 hour race at Le Mans.

It was in November that the 2 drivers approached the film company. Their suggestion to compete under the Kodak colour was accepted and a program was put together. Le Mans was part of it.

Non literal translation by Marie-Therese.