Born at 141 Oliphant Street, Chelsea (then known as O Street) in 1880 to Maximilian and Ellen Guillon, Flo's life was short and her death is shrouded in mystery.

Not much is known of her life up to 1902. In the June she started working as a typist for a firm  at 32 Queen Victoria Street in the City.

For reasons unknown Flo commited suicide by jumping from Battersea Bridge at 10:10pm on Friday the 13th of February 1903.

A report featured in the Westminster & Pimlico News the following Friday, 20th February 1903, and was written as follows:

DROWNED OFF BATTERSEA BRIDGE
YOUNG WOMAN'S SAD SUICIDE

Mr. John Troutbeck held an inquiry at the Westminster Coroner's Court, on Wednesday, into the circumstances attending the death of a woman named Louise Guillon, 22 years of age, a typist, lately residing at 5 Woodville-road, Thornton Heath. She was found in the Thames off the Grosvenor-road pumping station on Sunday.

Maxmillan [sic] Guillon, a photographer, identified the body as that of his daughter. He said she was unmarried and lived with her parents. She had never threatened her life and she was always cheerful. The statement contained in a letter that she left, to the effect that she was a burden to everyone, was a pure delusion. She was a very sensitive girl, but as a matter of fact she was in a situation earning wages at the time of her death. She was last seen at home on Thursday evening, last week, when she seemed quite as usual. The witness identified the letter produced as being in the deceased's handwriting.

Alfred Sharpe, an office boy, living at 25 Redstock-street, Battersea, stated that at ten minutes past ten on Friday, last week, he was crossing Battersea Bridge when he heard a splash followed by a cry and groan. It was very dark and he was unable to see who had jumped into the water. Later the witness found a letter lying on a seat, covered by the deceased's gloves.

Alfred Tucker, superintendent of the Grosvenor-road pumping station, stated that the body was found on the foreshore of the river at noon on Sunday.

P.C. 144 B, said that he made a search of the deceased's body and found an envelope addressed to the girl's parents ; a railway ticket ; and 5 3/4d. in money.

Dr. Thornhill, of 85 Pimlico-road, said that he saw the deceased's body and made a post-mortem examination. All the organs were healthy.

Mr. Frederick Morce, an accountant of 32 Queen Victoria-street, said that he was in the office in which the deceased girl worked. She had been employed since there since June last. She was a bright and cheerful girl and had no trouble. Occasionally she had to do some of her work over again as any clerk might have to do, but she generally gave her employer entire satisfaction. Witness and the deceased's employer were quite unable to account for her suicide.

The jury returned a verdict of "Suicide during temporary insanity".

The following appeared in the Croydon Chronicle, the Norwood, Selhurst and Thornton Heath News and the East Surrey Advertiser on the 21st February 1903:

SUICIDE OF A THORNTON HEATH YOUNG LADY
"LOST ALL HOPE"

Thornton Heath was startled a few days ago by the news of the determined suicide of one of its residents - a young lady, Miss Florence Emily Louise Guillon - who lived with her parents at 5 Woodville Road, Thornton Heath, and whose body was found early in the week in the Thames.

Miss Guillon was a typist in the City, being well known and highly esteemed by many with whom she came in contact, and the news of her death came as a great shock.

Unfortunately, no photographs of Flo have survived to be passed down the generation; whether this was because of her suicide and that the photos were destroyed, or simply because they have been lost over the years, I don't know.