Pedophile Dennis McKenna has lodged an appeal in the WA Supreme Court against his nine-year sentence.
The father of one of Western Australia's worst paedophiles claims some victims have "jumped on the bandwagon" and were not abused by his son, who only pleaded guilty to get a lesser sentence.
Serial paedophile Dennis McKenna has lodged an appeal in the WA Supreme Court against his nine-year sentence, claiming it was crushing, considering he was already serving a jail term and how old he would be upon release.
McKenna has been convicted of 63 offences against 28 boys at St Andrew's Hostel in Katanning, where he was the warden between 1975 and 1990.
The 69-year-old was jailed last year for an additional nine years to be served cumulatively with his July 2011 sentence of six years and four months for similar sexual offending.
He had pleaded guilty to 34 new charges including several counts of unlawful indecent dealings, carnal knowledge against the order of nature and gross indecency.
McKenna was previously jailed in 1991 for molesting boys and including that jail term, has now been sentenced to a total of 22 years and one month in prison.
But his father, Doug McKenna, said his son had always insisted that some of the men had "jumped on the bandwagon" to get compensation and that he had not touched them.
"He admits to me that there's quite a few that he did, but there's a lot that he didn't," he told 6PR Radio on Wednesday.
Mr McKenna said his son was promised a reduced sentence for pleading guilty and did so "to get it all over with".
He said his son had settled in very well in prison but was hoping to shave off about two years from his sentence, which would mean he would be released in 2022.
McKenna's victims said they were disappointed that the appeal had been lodged.