Angry mothers have slammed the organisation's response to the serious allegations made about Elim, the Hobart home used as a 13-bed maternity hospital until 1973.
Government MHA Fran Bladel, chairwoman of the committee investigating adoption services from 1950 - 1988, has also expressed disappointment in the submission.
Most of the critisism has been directed at the Salvation Army's lack of preparation and the decision to send divisional commander Major Peter Callander, who has been in Tasmania for only 10 months, to represent the organisation at the inquiry on Thursday.
Salvation Army public relations secretary for Tasmania Toy Foste said the organisation had attemted to contact people who worked at Elim from 1950 - 1973.
"We did try to get some people but the time was so long ago," Mr Foster said.
"We are talking about staff records for a place that closed down 26 years ago."
Those who could be contacted were unable to assist.
"We are talking about older people," he said. "They really have difficulty remembering."
Mr Foster also said the organisation did not know what to expect at the hearing.
"We did not know what sort of questions we were going to be asked," he said.
Mr Foster repeated an offer of counselling for women who had appeared before the committee.
"We have been involved in other grief-counselling situations," he said. "We will be prepared to do whatever we can."
Origins Tasmania president Mary Harris said she doubted whether women who had bad memoried of Salvation Army services would be interested in counselling. But she challenged the organisation to "put a package together and send it to me".
"I would prabably go and see the counsellors just to see what they had to say to me," she said.
Mrs Harris did not accept the Salvation Army's explanation that it could not find anyone who remembered how Elim operated.
She said someone had pointed out to her how ironic it was that the organisation operated a missing persons service but could not find former members of its own staff.
The Inquiry Continues: