On Apr 21, 5:12*pm, RookHouse wrote:
On Apr 21, 4:45*pm, wrote:

* As far as I know, Steinitz had only one child, a daughter, Flora,
born to him and his first wife Caroline in 1866. The daughter
predeceased Steinitz, dying of endocarditis in 1888, which greatly
grieved her father. Wife Caroline (née Golder) was of English birth,
and nine years younger than Steinitz. I don't know anything else about
her.
* I know even less about his second wife, just that she was born in
Switzerland. Landsberger's "The Steinitz Papers" has a few documents
that indicate she got some money from charitable friends of Steinitz
to help with his hospital costs. Perhaps some of this money was still
there when he died in August 1900.

Flora is indeed mentioned in the obituary, but so are his two children
with his second wife:

“About two months ago Mrs. Steinitz, in order to maintain her two
children, opened a small candy store at 505 West Twenty-Sixth Street,
just beyond Tenth Avenue.”

“Prior to his being sent to hospital for the insane, Steinitz lived
with his second wife and two young children at 1555 East One Hundred
and Third Street.”

So, I guess the current mystery is whether these children were hers
from a previous marriage (or from Steinitz) and what happened to them
after Steinitz passed away.

I based my comments on "The Steinitz Papers," which mentions only
Flora, but it's certainly conceivable he had other children. I don't
know if Steinitz was the father of these two mentioned in the obituary
or not. Landsberger has 34 pages of brief bios of people "whose lives
touched that of William Steinitz," but neither wife is there, nor any
children besides Flora.
Looking further, I see Landsberger devotes a half-page to a Hedwig
Steinitz, daughter of Wilhelm's half-brother Bernard, who lived in
Prague and apparently never came to the USA. Landsberger writes:

"In a letter of August 9, 1893, Steinitz wrote that the two oldest
children of Bernard, a boy and a girl, had arrived at his house [the
boy was named Josef -- TK] ... At one time Hedwig told a reporter that
she was not only Steinitz's niece but his adopted daughter; the
reporter quoted her as calling him 'Papa.'"

So I wonder if the two children mentioned in the obituary were
Hedwig and Josef? Seems possible, though at the time of Steinitz's
death Josef would have been about 25 and Hedwig 22, a bit old to be
dependent children still.